The only game I definitely see *not* coming back next year is MK9. It's pretty much run its course, and it basically has a replacement.
Can't really say anything one way or the other on the rest since I don't know enough about what's coming out in the next year and what existing games they would tend to replace.
SFXT I think has a chance of being dropped.
It didn't have much hype around it (watched some of the top 8 and it was a snore) and there's the fact that it's street fighter characters are going to be in SF4 now.
In terms of entertainment AE and KOF have easily been the most fun so far. Melee seems to be doing well too but I don't follow that game so can't say for sure.