In view of some of our discussion here I thought this excerpt following might shed some light on the issues and offer the Baha'i perspective. So I'm quoting here from the report of the Baha'i Research Department that serves the Universal House of Justice:
The Research Department has studied the questions about various aspects of the Bahá'í Teachings raised by Mr. ... in his letter dated 27 May 1994 to the Universal House of Justice. We provide the following comment.
1. New Religious Movements
1.1 Station of founders
Mr. ... enquires about the Bahá'í perspective on such founders of religious groups and movements as the Reverend Moon (the Unification Church), Sai Baba, 'Maitreya (London)', the founder of Brahma Kumaris, Madame Blavatsky (Theosophy) and Alice Bailey (the Arcane School and the School of Esoteric Studies). He asks whether they are to be considered as false prophets or people who were influenced by the spirit released by the coming of Bahá'u'lláh and hence are fulfilling some special function like bringing more love and unity to the world.
As Mr. ... is, no doubt, aware, Bahá'ís do not expect the coming of a new Manifestation of God before the lapse of a thousand years. In this regard, the Universal House of Justice in a letter dated 11 May 1993 written on its behalf to a National Spiritual Assembly provided the following guidance concerning the Bahá'í view of the founder of the Sai Baba movement:
Bahá'ís, of course, cannot accept the claim of the founder of the movement, or his successor, that he is the equivalent of what we understand to be the Manifestation of God, even though he may have been inspired with the spirit of the age. It is clear in the Bahá'í Writings that such an august Figure is not to appear before the expiration of at least a full thousand years after the coming of Bahá'u'lláh.
As to the founders of the other groups, the Research Department has not been able to locate any specific references in the Bahá'í Writings to them. Mr. ... might be interested to know tat in God Passes By Shoghi Effendi indicates that the prophecy concerning 'Maitreye, the Buddha of universal fellowship' (as distinct from 'Maitreya (London)'), is a reference to Bahá'u'lláh (1). Further, when the Guardian was asked about the status of a number of different religious groups and movements, his secretary, writing on his behalf, responded:
Truth is found everywhere. It would be indeed difficult to find a creed or a doctrine of any sort in this world that did not possess some facet of truth; this is what Bahá'u'lláh believed and taught. But everything has a source or focal centre; the focal centres of truth are not broken up or distributed at random, but, like the sun, are concentrated in one mighty source whom we call a Prophet or Manifestation of God. What we find in each other, and in various creeds, are rays from this source — but the source is the all-important thing, and to recognize and turn to it gives one an infinitely greater degree of strength and enlightenment than to try to find its rays, one here and one there, scattered about among our fellow men.
(7 July 1942 to an individual believer)
Regarding Mr. ... The Guardian is not familiar with his name or his works. There are such mighty forces at large in the world today that many people, unaware of their origin and true purpose, get swept off into all kinds of ... religious convictions and start new cults and societies. Often their intention is very high, and they are intensely sincere. What they do not, of course, realize is that they have caught a ray or glimmer from the Sun of Bahá'u'lláh and not the whole truth at all, but a tiny, distorted fragment of it.
(3 August 1942 to an individual believer)
While we have not located any references to Madame Blavatsky, the founder of Theosophy, there are a number of statements, in letters written on behalf of Shoghi Effendi, on Theosophy itself. For example:
The idea of Masters as expounded by the Theosophists is contrary to the Teachings. The doctrine of 'return' as set forth by Bahá'u'lláh in the Iqán is essentially different, implying no incarnation or return of the essence, but simply the return of the attributes and qualities. It is just like the return of fragrance and colour in flowers. The individuality is neither lost nor identified. It is untransferable.
It is therefore sheer superstition to believe that holy souls can voluntarily return to this world and serve the people.
(22 April 1939 to an individual believer)
Many theosophists accept Bahá'u'lláh as a Prophet, but we have no special relation to theosophy.
(4 October 1950 to an individual believer)
For the source of the above see
http://bahai-library.com/uhj/new.religions.html