Ahanu, you are ignoring the fact that Allah's Messenger [saw] interpreted the Quran, and the hadiths mention that he will die on his return; also there is a Quranic verse that very clearly expresses a future tense regarding his death:
Aayat No.159 of Surah Nisaa' states :
�And there will be none of the Ahl -e-K
itaab, but he will believe in him (Isaa) before his Maut (death).�
In the tafseer of this aayat, Hadhrat Abu Hurairah (radhiyallahu anhu) said:
�Nabi (alayhis salaam) said: �Most assuredly, the Son of Maryam will descend (to earth) as a just ruler. Then he will most certainly slay Dajjaal, kill pigs and destroy crosses. And,(at that time) Sajdah (worship) will be exclusively for Allah Rab-bul Aalameen.' Then Abu Hurairah said: If you wish recite(aayat No.159)' He added: �Before the Maut of Isaa. He repeated this thrice.� (Maaariful Qur'aan)
All members of the Ahl-e-Kitaab (people of the book: Jews/Christians). will ultimately accept Imaan (faith) at the hands of Nabi Isaa (alayhis salaam) before his death. This too testifies to the belief of him still being alive. Millions and millions of Ahl-e-Kitaab have not yet believed in Hadhrat Isaa (alayhis salaam) in the way Islam requires belief. This will happen after his
Nuzool (descent) from the Heavens.
THE QURAAN
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so as we can see, all christians and jews will have to believe in him before his death and this has been interpreted in the hadiths that on his return, only Islam will be accepted on earth as a religion, thus whatever non-Muslim dont accept Islam will perish; this weren't the case in the past was it?; thus Jesus [pbuh] could not have died yet
there are other hadiths too that say that every single person who dont accept Islam on Jesus' return will perish:
Narrated Abu Huraira(RA) that the Prophet of Allah(SAW) said:
By Him in Whose Hands my soul is, Son of Mary (Jesus) will shortly descend amongst you people (Muslims) as a just ruler and will break the Cross and kill the pig and abolish the Jizyah (a tax taken from the non-Muslims, who are in the protection, of the Muslim government). Then there will be abundance of money and no one will accept charitable gifts.
(Sahih Bukhari, Vol. 3, Book 34, No. 425)
Narrated Abu Huraira(RA) that hazrat Muhammad(SAW) said:
The Hour will not be established until the Son of Mary (i.e. Jesus) descends amongst you as a just ruler, he will break the cross, kill the pigs, and abolish the Jizyah tax. Money will be in abundance so that nobody will accept it (as charitable gifts).
(Sahih Bukhari, Vol. 3, Book 43, No. 656)
Allah's Apostle(SAW) declared:
I swear by Him in Whose hands is my life that soon there will descend among you Hazrat Isa Ibn-e-Mariam as a Just Ruler; so (he) will break the 'cross', kill swine and prohibit war!
(Sahih Bukhari, Vol. 1, No. 668, Book of Prophets, P. 490)
Narrated Abu Huraira(RA) he heard Allah's Apostle(SAW) say:
By Him in Whose Hands my soul is, surely (Jesus,) the Son of Mary will soon descend amongst you and will judge mankind justly (as a Just Ruler); he will break the Cross and kill the pigs and there will be no Jizyah (i.e. taxation taken from non Muslims). Money will be in abundance so that nobody will accept it, and a single prostration to Allah (in prayer) will be better than the whole world and whatever is in it." Abu Huraira added "If you wish, you can recite (this verse of the Holy Book): -- "And there is none Of the people of the Scriptures (Jews and Christians) But must believe in him (i.e Jesus as an Apostle of Allah and a human being) before his death. And on the Day of Judgment He will be a witness against them." (Quran 4:159)
(Sahih Bukhari, Vol. 4, Book 55, No. 657; Fateh-ul Bari, Vol. 7, P. 302)
A similar narration by Ata(RA) has been recorded by Muslim with the following sentence added at the end:
Mutual hatred, jealousy and grudge will disappear.
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the abolishing of the jiziyah [non-Muslim tax] and abolishing war indicates that there would not be any non-Muslim left; iether the people will convert to Islam or perish
here is a hadith that clearly says ALlah will perish all religions except Islam:
Narrated Abu Huraira(RA) that the Prophet(SAW) said:
There is no prophet between me and him, that is, Jesus (peace be upon him). He will descent (to the earth). When you see him, recognize him: a man of medium height, reddish fair, wearing two light yellow garments, looking as if drops were falling down from his head though it will not be wet. He will fight the people for the cause of Islam. He will break the cross, kill swine, and abolish jizyah. Allah will perish all religions except Islam. He will destroy the Antichrist and will live on the earth for forty years and then he will die. The Muslims will pray over him.
(Sunan Abu Dawud, Book 37, No. 4310)
Narrated An-Nawwas ibn Sam'an(RA) that Rasulullah(SAW) said:
...He will then call (that young man) and he will come forward laughing with his face gleaming (with happiness). It will at this very time that Allah will send Christ, son of Mary. He will descend at the white minaret on the eastern side of Damascus, wearing two garments lightly dyed with saffron and placing his hands on the wings of two Angels. When he lowers his head, there will fall beads of perspiration from his head, and when he raises it up, beads like pearls will scatter from it. Every non-believer who smells the odor of his body will die and his breath will reach as far as he is able to see. He will then search for him (Dajjal) until he catches hold of him at the gate of Ludd (Jerusalem) and kills him.
Then a people whom Allah had protected will come to Jesus, son of Mary, and he will wipe their faces and inform them of their ranks in Paradise. It will be under such conditions that Allah will reveal to Jesus these words: I have brought forth from among My servants such people against whom none will be able to fight; you take these people safely to Tur, and then Allah will send Gog and Magog and they will swarm down from every slope. The first of them will pass the lake of Tiberias and drink out of it. And when the last of them passes, he will say: There was once water there...
(Sahih Muslim, Book 40, No. 7015)
so will Islam all of a sudden change as for now no non-Muslim will be killed unless ofcourse if they fight and try to kill Muslims, so why will all non-Muslims perish when Jesus [pbuh] returns; well that will be a plague from Allah via the holy breath of Jesus [pbuh]; as we can see in the above hadith, and in another sense it is part of Islam now, for the end of signs times are part of Islam
Narrated Abu Huraira(RA) that hazrat Muhammad(SAW) taught:
How will you be when the Son of Mary (i.e. Jesus) descends amongst you and he will judge people by the law of the Quran and not by the law of Gospel.
(Sahih Bukhari, Vol. 4, Book 55, No. 658; Fateh-ul Bari, Vol. 7, P. 304-305)
there are hadiths which say Allah will take all Muslims from the earth before the last hour, and the hour will come upon only the wicked, but this will be after the earth is only inhabited by Muslims, and many years thereafter people will start to go astray again, and soon after the earth will once more be filled with both Muslims and non-muslims:
Narrated Abdullah ibn Amr(RA) that:
Someone came to him and said: What is this hadith that you narrate that the Last Hour will come at a certain time? Thereupon he said: Hallowed be Allah, there is no god but Allah (or words to the same effect). I have decided that I shall not narrate anything to anyone now. I have only said that you will see after some time an important event: that the (sacred) House (Ka'bah) will be burnt and it definitely happen.
He then reported that Allah's Messenger (peace be upon him) said: The Dajjal will appear in my Ummah and he will stay (in the world) for forty -- I cannot say whether he meant forty days, forty months or forty years. Allah will then send Jesus, son of Mary, who will resemble Urwah ibn Mas'ud. He (Jesus Christ) will chase him and kill him. Then people will live for seven years, during which time there will be no rancor between any two persons. After that Allah will send a cold wind from the direction of Syria. None will survive on Earth, having a speck of good in him or faith in him: he will die. Even if some among you were to enter the innermost part of the mountain, this wind would reach that place also and cause your death.
I heard Allah's Apostle (peace be upon him) as saying: Only the wicked people will survive and they will be as careless as birds with the characteristics of beasts. They will never appreciate good nor condemn evil...
(Sahih Muslim, Book 40, No. 7023)