Hmm, if Ant-Man
starts shooting next year, Marvel will probably be shooting for a 2015 release. I'm guessing that The Avengers 2
will also probably come out in 2015 (IMO, they should lock up the first weekend of May ASAP). Maybe we'll be getting two movies in an Avengers
year instead of just the one we got this time.
EDIT: Whoops, I kinda skipped a year. Next year is 2013, not 2014.
So maybe Marvel will still be releasing three films in 2014 after all. That year's already getting crowded, though. I'm not sure where they'd be able to fit Ant-Man
in. Maybe early November? They're already doing that with Thor: The Dark World
in 2013, and right now the only movie scheduled for November 2014 is Mockingjay, Part One
, on November 21st.