This series actually started in 2008 with a #0 issue as a preview for the series. This was, of course way before Sam Wilson became Captain Falcon. It's just like Batman: Europa--the series was named and slated for years ago, but the creators just were not able to complete the projects for publication until now. There's no reason to change the name.
@mysoulz: My apologies for the spoiler. I've edited my comment (though I'm not sure how to do spoiler tags on my phone, as my computer is busted). He was in a trailer though, so I figured it was known.
No prominent black superheroes? Let's not overlook Nick Fury, War Machine and Falcon, the latter both being Avengers in MCU continuity now. And there was a black hero featured in last Friday's Ant-Man.