Michael Douglas and Michelle Pfeiffer in Infinity War

I have no idea how this will work out. It will most likely be a flashback sequence that will set the events of Ant-Man and the Wasp in motion. The rumor says that both Hank Pym and Janet Van Dyne will appear in the Infinity War.
It seems a bit weird to have these two appear in a movie that already seems overcrowded. So, if it turns out to be true, the actors may just cameo. Maybe their knowledge and ability to hop between dimensions will be an ace in the hole for the Avengers, who will realize that Janet Van Dyne is essential for winning the war.
It's speculation, of course. But given the Russos' track record in the Marvel Cinematic Universe, I guess we can trust them. The directors have already shown that they can handle bigger casts and that their stories can be compelling.
And one more rumor about Ant-Man and the Wasp is coming up next!
