I think the third Ant-Man movie is going to be a much bigger, more sprawling movie than the first two.
If the Quantum realm is explored further in Ant-Man 3, it opens up three major possibilities.
The Quantum Realm was introduced in the first Ant-Man as the place that exists between atoms, a world so small that entering the realm causes the human anatomy to change in strange and sometimes permanent ways.
Now, Peyton Reed, the brains behind both previous Ant-Man films, has revealed in an interview with Collider that Ant-Man 3 is going to be the shrinking superhero’s biggest outing to date.