I finally put a few hours into the game, I have seen many small differences. Namely just diffrent names for monsters and some other gramatical things. here are some pics
what is called an imp in the released version

the guy says northwest in the release and north here(Castle Cornelia 2nd floor Southwest corner)

this is called a creep in the released version. worm is something else.
also note the the backgound in the temple of fiends. this is much diffrent than the columns in the released version

the Warwolf is called wrwolf in the release , grgobln is a grImp

the Eye is called the OddEye in the released version , eye is something else.

The antidote for poison in the release is Pure this is called Cure.