Directors Joe and Anthony Russo have been speaking more freely about "Avengers: Infinity War," the two-part film event that will close out Marvel's third phase of films. They've already discussed the number of characters we'll see in the films and promised we won't be disappointed with the lineup. Now, they're teasing more about that lineup of characters.

During the same revelatory panel at Wizard World New Orleans, directors Joe and Anthony Russo discussed the shifting nature of the Avengers' lineup and how it might be different for "Infinity War."

"Everything is finite, right? Nothing can last forever," said Joe Russo, as reported by ComicBook.com. "It's cyclical. Some new Avengers in phase 4 are going to become prominent and then maybe some Avengers might not be around anymore. So, we'll see how all this plays out but you have to treat every character with respect. I think it's interesting that if you've seen four or five movies with the lead character having an arc, I want to see some story telling from some of the secondary characters. We're focusing on that right now with 'Infinity War' while we're breaking into those movies, is which characters can we pull to the forefront who potentially haven't had their own 'A' story arc to this point. I think you'll see that the supporting Avengers are going to become primary Avengers."

The Avengers experienced their first major shakeup at the end of "Avengers: Age of Ultron," which left Captain America and Black Widow in charge of a quartet of new recruits. That roster will be seen in action in "Captain America: Civil War," also directed by the Russos and opening on May 6.

"Avengers: Infinity War - Part 1" opens May 4, 2018; "Avengers: Infinity War - Part 2" opens May 3, 2019