Marvel has a live blog covering the X-Men Panel at the 2009 San Diego ComicCon. The panel is currently ongoing, but so far Way has had this to say:
Deadpool 900: lots of stuff coming up. We have been going for a year. The first story arc is wrapping up. he gets paid, and gets what he wants (he is the best).
What does he do now? Does he still exist? (he doesnt). So now the next year's worth, his next challenge is to be one of the good guys. And he doesnt know how to do that, so he has to learn. He tries to join the X-Men. It doesnt go well.
Can he be a hero at this point? Or does he have too much bad history? can he use that skillset? Lots of explosions!
In the next arc he is gonna find out that the hero biz isnt as easy as he thought. His reaction will be interesting.
[SOURCE]