Well all I can say is I'm looking forward to the game mainly for the interactive story. Personnally I don't give a monkies about the D20 rules. As for levels of npc or players joining your party who cares as long as I enjoy the game.
And whats wrong with being level 20+, I mean what does the level of Yoda and Emperor in books have to do with a xbox/pc game which is set 4000 years before the movies.
Hades for the love of all thats holy stop moaning, if you don't like what they are doing then don't buy the game. If you can make something better than kotor 2 then do it, put up or shut up.