The alien language dialogue is remixed to remove any forward spanish words.
The Special Edition (waiting for CG Yoda release of TPM) will have a few varying alien tracks.
I'm still on the fence about dubbing in new voice actors for the alien audio because although the lip synch could be improved, I've yet to see a fan redub of a character that was really spot on. There's usually just a sense of, some guy recorded this at home and spliced it in. If I recieved some type of voice over auditions from people where I just went "Wow, that's perfect", I would consider it.
Other things for the Special Edition of Balance include a little onscreen of discussion of just what the Sith are, between Qui-Gon and Anakin, in the place of the midichlorian discussion and of course:
An early mock up from one of several scenes...