As part of building the hype for the upcoming new Tron movie, Marvel Comics will release a bunch of Tron-inspired cover variants for most of its on-going series.
It will be used on the likes of Spider-man, Wolverine, Ghost Rider, Avengers, etc..
Well, most mainstream Marvel titles!
(and if you ask why; Marvel is part of Disney now, Disney owns Tron, Marvel can uses Tron, Marvel inspired Tron covers+more Tron advertisment=profit!)
And now, here they are:
I gotta say, the Ghost Rider one with the Tron-cycle bike is probably my favorite here :D