I can't see him spoiling much, he kept info about Champions #15 behind a spoiler tag when someone pointed out a possible error in Avengers #675 spoilers:end of spoilers Since the Champions issue had already come out and it wasn't that week, it wasn't a spoiler - I've only used a spoiler tag here in case you're waiting for the Worlds Collide TPB as well.
(namely, that Viv shouldn't have been with the team because she's now human - the spoiler being that there's actually now two Vivs).