It is 8-10 new characters and they are reworking parts of the games engine, DLC would have been too huge because most Xbox owners don't splurge for the bigger hard drive.
It's still an improvement. ALL NINE installments of SF2 were what, 75$? And those games were so close together that they released an anniversary edition that lets you play all SF2 chars from 5 of the games (essentially like 70 characters, where every group of 5 have only slight differences). I don't think that's going to be possible because they're making real changes to this game.
Street Fighter 2 : World Warrior
Super Street Fighter 2
Street Fighter 2 turbo
I know that genesis was called championship edition if you are including that, and SF Alpha was on snes if your counting that for some reason it is still only 5. What am I missing?