Its official. Ant-Man will be the next Marvel film after Phase 2 culminates with the Avengers sequel in 2015. With this news, Ant-Man could potentially be the one to kick off Phase 3. Previous rumors had hinted that Ant-Man would be squeezed into 2014, but it looks as if Marvel is sticking to the "2 per year" formula which has been working pretty well thus far. As for DC's offerings in 2015... nothing yet has been announced.
Check out a recreation of Comic Con footage below. Hopefully the actual footage will be released soon.