I hadn't seen much all year either, until this week. Our local TRU did have the She Hulk, FF Spidey, Scarlet Witch wave on the pegs, but that's about the first I've seen this year. Target has gotten that Psylocke/White Iron Fist/etc. wave a few times (and still has some), and our local WM doesn't even carry MU. Much like SW, I'm up to date with this line just because I've ordered it all online from BBTS. Still on the lookout for those other comic packs though, haven't seen the She Hulk/Wolverine ones, the only one our TRU seems to have gotten are the Spidey/Doom set (which is nice), Iron Man/Mandarin, etc.
I notice - at least so far - Hasbro didn't show anything MU at NYCC either. I'm starting to wonder if this line has much of a future, or if they are just holding some things back and focusing on Iron Man 3 (and Legends).