|courtesy of The Reel Scoop|
What makes this especially baffling is that Wright has been involved with bringing Ant-Man to the big screen since 2006, first as a writer and then director. Marvel states that an as yet unnamed person has already been hired to take Wright's place so release date will not be changed.
Ant-Man is slated to kick off phase three of Marvel's Cinematic Universe project. Also slated for phase three according to the MCU wikia and Den of Geek is Captain America 3, Thor 3, Doctor Strange (did you miss that little easter egg in Winter Soldier?), and Avengers 3. Further speculation has included Black Panther, The Runaways, and even a Black Widow solo movie. Strangely enough, there's been no peep about a Hulk movie with Mark Ruffalo as of yet. TV shows for Daredevil, Jessica Jones, Luke Cage, Iron Fist and a Defenders miniseries have also been confirmed and will be released on Netflix.
The expected release date of July 17, 2015 is not supposed to be affected by this news.