They can still add future expansions and change the name up from DLC. SSF4 went to AE then AE2012 all on the same disc. I never disliked buying a new revision yearly as it gives the devs a chance to add more content besides bug fixes, characters, balances, exc.
I personally can't wait to get ahold of the game. To me the combat style is what I wished SF4 series would of been like. I come from a ST/Alpha background growing up so SF4 felt too slow and restrictive for my tastes. I have both the JP and NA LE's on preorder and will be streaming so Dustloopers will have our own stream room to gem it up.