This won't make much difference to non-MOC collectors, but if packaging is a big deal, you need to know that Comic-Con is the only place you can get Kick-Ass 2 figures that actually feature the fully written movie title...as well as the name of primary villain The Motherfucker.
For the benefit of Jim Carrey, it should be noted that none of these figures come with guns. For the benefit of those burned by Mezco's figures from the first film, it should be noted that they will be affordable and be capable of standing on their own.
I guess a Nic Cage in bootleg Batsuit figure is out of the question for various legal reasons. Alas.
UPDATE: here's a just-released Kick-Ass 2 viral video, courtesy of ComicBookMovie.