I'm hoping against hope that 2011 gives us more create-a-wrestler options, a few more match types, and a better overall storyline progression.
It's hard to say what kind of career mode I'm looking for, though, since the last few games for even the Xbox 360/PS3 have had horrible Road to Wrestlemania modes with story lines like "Undertaker turns Santino and Finley into undead zombies."
I, however, wouldn't be opposed to them attempting to do something like this on the DS. On the home consoles they have 5-6 Road to Wrestlemania story lines you can play as specific wrestlers, and one you can usually do with your created one. There's also a side career mode but it's just a basic "Defeat 5 guys, get title, win title, move on to next title, repeat" affair. I think both of these kinds of modes can be easily duplicated on the handhelds.