New iteration of Earth's Mightiest Heroes will debut on Free Comic Book Day in The All-New, All-Different Avengers by Mark Waid and Mahmud Asrar. And Miles Morales, the Ultimate Spider-Man, is one of them.
Marvel Comics solicitations for June 2015 @ Newsarama
Hulk vs. Hulk, apparently.
Axel-In-Charge: Miles Morales: The Ultimate Spider-Man #12 @ Comic Book Resources
Six pages from the last issue of the series.
It's the so-called Action Figure Variant cover by John Tyler Christopher.
Guest starring Jonathan Hickman as Ultimate Captain Universe.
The Human Fly Twins vs. Black Widow.