Of course, one of the most likely outcomes of this secretive project is that Marvel will be using it as an opportunity to tell even more stories with established characters. Captain America turned out to be something of a surprise hit, since the character doesn't have any particular international appear on paper. The first film was a rollicking pulp adventure from Rocketeer director Joe Johnston, and the second leapt forward to examine issues of surveillance and international terrorism in modern American culture. Which means there's plenty of scope to tell more stories since, well, what happened in that time before he was frozen? In the first Avengers film SHIELD Agent Coulson mentioned growing up watching the Captain America Saturday morning cartoon series it would be kind of great if Marvel's new animated series was that very in-universe cartoon. Cap's wartime escapades were mostly shown in montage form. An animated series, whether framed as the propaganda-esque adaptation of those escapades or not would be a heck of a lot of fun, and allow the showrunners to tell stories that would technically be part of the MCU, without ever worrying about potential continuity mishaps. They're just covering old ground in more detail. And NAZIS.
Tom Baker is the Comics Editor at WhatCulture! He's heard all the Doctor Who jokes, but not many about Randall and Hopkirk. He also blogs at http://communibearsilostate.wordpress.com/