[slurry]

> This discovery excites me because the person also mentions that it has Caucasian characters in the manuscript.

That actually, to my mind, increases the probability that it is nothing serious. When Westerners 'discovered' the Caucasian alphabets there was a brief mania for them among the small number of people who got excited by that kind of thing. One result was the 'Theban alphabet':

http://en.wikipedia.org/wiki/Theban_alphabet

Which looks semi-profound and a little like Georgian, but is only just a bog-simple glyph cipher on top of the Latin alphabet, based partly on the recent publication of Georgian grammar in Latin.

Voynich's Caucasian characters may have just been following the latest trend in cryptography/occultism.