This story is developing, but Edgar Wright will no longer be directing the Ant-Man movie.
The following statement was released:
Marvel and Edgar Wright jointly announced today that the studio and director have parted ways on ANT-MAN due to differences in their vision of the film. The decision to move on is amicable and does not impact the release date on July 17, 2015. A new director will be announced shortly.
Ant-Man is slated for a July 17, 2015 release starring Michael Douglas as Hank Pym and Paul Rudd as Scott Lang.