Not that it was ever in doubt, but...
Kevin Feige, overlord of Marvel's movie machine, made it clear in a recent interview that both "Thor" and "Captain America" would be getting the sequel treatment.
"Thor will go off into a new adventure, and Captain America will continue to explore the modern world in another film of his own," Feige told D23 magazine (via IGN). "We hope that holds true for the characters appearing in that film — Black Widow, Hawkeye, and the spy organization, S.H.I.E.L.D. —all of whom are more than worthy and capable of carrying their own films...
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"And, we’ve got a lot of other characters we’re prepping and getting ready for film debuts: the world of martial arts, these great cosmic space fantasies, Dr. Strange, and the magic side of the Marvel Universe. There are many, many stories to be mined." (In other words, start your Shang-Chi, Iron Fist, and, um Uatu the Watcher?, casting rumors now)
We've been openly gushing over every piece of "Captain America" that hits the tubes, and whinging ceaselessly by how bad "Thor" looks--though, to be fair, the overall response to a recent screening was positive. But we never doubted for a moment that either character would be one-and-done.
As for the other projects, Dr. Strange is the only one that really grabs our imagination. Dude's got a great backstory, some whacked out enemies and some seriously trippy powers that would look awesome in 3D.
Anywho... "Thor" opens May 6, "Captain America: The First Avenger" on July 22.