Marvel Heroic Roleplaying: Civil War Event Book Essentials
Marvel Heroic Roleplaying: Civil War - 50 States Initiative
I like this last book in particular, because it seems like this will finally provide a more detailed set of rules for creating your own heroes and team:
Tony Stark's grand idea following the Superhuman Registration Act is the Initiative, a coast-to-coast operation that sets up Super Hero teams in every state. Train your heroes at Camp Hammond and set up your team in preparation for the next threat to law and order! Includes a full roster of Initiative members and new trainees ready to drop into your Civil War campaign.
Unfortunately, based on the release date, we can expect it some time around July 10, 2012. So that's a bit of a wait.
In the meantime, I am reviewing the rules for a small, intimate, getting-to-know-you play-by-post playtest with a couple of friends. More on that in another post.