http://411mania.com/movies/guardians-of-the-galaxy-vol-2-to-introduce-ego-the-living-planet/

According to Geek.com, Guardians of the Galaxy Vol. 2 will introduce the character of Ego the Living Planet to the Marvel Cinematic Universe. The site reports that the character is in the current script for the film, although the capacity in which he appears isn’t revealed.

Ego was created by Stan Lee and Jack Kirby and first appeared in Thor #132 in 1966. He is exactly what he sounds like: a sentient planet, the result of a scientist merging with a planet when that planet’s sun went nova. Ego has run across several of Marvel’s heroes in the past and has figured prominently in many of Marvel’s cosmic stories.

Guardians of the Galaxy is currently set to release on May 5th, 2017.