We ran the spoiler for the mid and end credit which alludes to the Avengers being a part of the Ant-Man movie and Ant-Man playing a bigger role in the Avengers. It looks like that info has been validated. A new international trailer features a familiar Avenger. There are spoliers ahead so read at your own discretion.
Here is the Spanish language trailer.
At 18 seconds in this image flashes.
Looks like Ant-Man is going to fit nicely into thr Marvel Cinematic Universe as it moves towards Civil War.