The Tron line actually seemed to sell rather well around here. At least the 4" figures, the light car and maybe one or two other things. The larger (6"? 8"?) figures didn't seem to sell and my Walmart has them on clearance along with the remote control ligth cycle and the white figure compatible version. Role play came and went and the small die cast vehicles did okay too.
My Walmart has a larger section for Thor than Target does, but it's still nothing compared to what IM2 got. I saw the regular Frost Giant at WM yesterday, not bad looking. I'd only seen the deluxe version before. The figures actually look okay, it remains to be seen how they sell, though. I don't really have any thoughts that, even if the movie rocks, this will become an evergreen line. If Hasbro can get one, maybe two more waves with more heroes/villains and then let it fade in favor of Captain America, I think they'd be serving the market.
I'm not looking forward to seeing the glut of red, white and blue that the CA lines looks to be about to unleash on us. I do think that line has the potential for better looking villains, though. But if we actually see them at retail is the question.