I am not expecting it, but I would be so plessent surprised if I saw of a new series Digimon Fusion Battles.
While that would be awesome and I would love to see a Digimon series on Cartoon Network, that would require the series to be picked up and dubbed first. I know that there has been a test dub sometime last year, but the last time I checked, there hasn't been any news for an actual dub. I could see them airing a dub of Xros Wars at some point though.
Anyway, the only new shows that I'm interested in watching are Ben 10 Omniverse, Beware the Batman and DreamWorks Dragons: The Series. I'm slightly surprised that Level Up got a second season and I wasn't expecting that Nick Cannon sketch comedy either. I was totally surprised to see Casper's Scare School, Hero 108, Scaredy Squirel and Sidekick are returning. I don't think most of those shows air that often anymore. I wasn't shocked to not see Generator Rex as a returning series. Even without knowing what happened in the last few episodes, there were more signs of its cancellation than a possible return.
I'm happy to see that Pokemon, Young Justice and Green Lantern: The Animated Series are confirmed to return. I'm disappointed that they didn't mention anything about Scooby Doo: Mystery Incorporated when it should have at least one more season. I already wish it could have a third season, if only because I find it the most interesting out of all of the Scooby Doo series, but hopefully the second season at least ties up the storyline and offers a satisfying conclusion. I hope that they pick up Beyblade. While I'm not a huge fan of the series, it's a pretty nice show to watch for the heck of it and from what I understand, it seems to do pretty decently in ratings, so hopefully they'll pick it up.
As for Thundercats, despite my issues with the characters and the pace of the storyline, it would be too bad if it didn't get renewed. It has a lot of potential and even with my problems with how it has been handled, it's still a pretty enjoyable action series. I don't think that it has as much of a chance at this point, but maybe something will change for the series.