Re: Avengers Sequel ideas?
I don't think you have to show Ultron being the big bad in an Ant-Man movie, Ant-Man used his own brain-patterns in ultron. Ant-Man is a bit of a head-case and I think showing the bot starting out on the up and up and slowly descending into the evil ultron we all know and want to see. Then maybe have a post credit scene showing the no-doubter as far as him being evil, something along those lines.
Any ant-man movie is most likely going to have wasp in there. It would be quite simple to kill 2 birds with one stone in regards to introducing both characters.