It is also confirmed that the Quantum Realm will play a huge part in the movie.
But now the Quantum Realm is a whole other territory that we can play with to tell our stories.
“At the end of Ant-Man we followed Scott Lang into the Quantum Realm for the first time,” Feige said.
The suits are red, white and black, and are theorized to protect the Avengers from their trip into the Quantum Realm, where Scott Lang was stranded at the end of Ant-Man and the Wasp.