Board Thread:General Discussion/@comment-4479676-20170201051932/@comment-25179360-20170201190039

No. I honestly believe people are way overthinking these dates. July 2018 was the only slot available for an Ant-Man Sequel that would give it enough time to be produced, and not have to move too many of the other films around. That, is probably the only reason it's in-between both Avengers films. I doubt it will be connected any more or less than the other Phase 3 projects.

If you notice Black Panther was originally slated for Ant-Man and The Wasp's current release date. But was pushed back after the latter was announced. If the movie in-between Avengers: Infinity War and the Untitled Sequel was meant to largely tie in, Marvel would not have done this. Just food for the thought.