Anyone know what language it's written in? And is it different than the Book of Prophecy Maleficent mentions to Pete?

Ask the Vulcans.

I'm unfortunately not sure if that information is currently known.  At least to me it isn't.

Made up kh language?  It's just made up symbols made to look like letters as far as I can tell.

 

And I'm under the impression that the Foreteller's Script and the Book of Prophecies are the same thing.

I was actually looking at this a few days ago, ironically.

Here's (http://www.mediafire.com/convkey/71ea/ok3korp6i91fe4ffg.jpg?size_id=d) a high-quality snapshot of the foreteller's tome, from Famitsu iirc. A few people over on KHInsider extracted the actual different letters, all posted here.

So... you tell me I guess?

i talked about those letters in a topic but everyone was all kh language is japanese or english duhh