Adam Warlock first appeared in the Fantastic Four in 1967 as Him, created by Stan Lee and Jack Kirby as an artificially created human imbued with cosmic power.
Since then he was renamed Warlock, then Adam Warlock, and developed by other creators including Jim Starlin he became a staple of Marvel's seventies cosmic comics, becoming an opponent of Thanos and joining with one of the Infinity Gems, the Soul Gem. He has fought Thanos on and off ever since.
His cocoon was seen in a both Guardians Of The Galaxy and Thor: The Dark World in The Collector's home and he is expected by many to appear in the Avengers: Infinity War movies.
Possibly as a precursor to that, it looks like he may appear in the Guardians Of The Galaxy TV cartoon series.
At San Diego Comi-Con, Marvel announced that they have "Big Adam Warlock plans " and that "will be seeing a lot of Adam Warlock and related characters" but not on Avengers or Ultimate Spider-Man.
Which would suggest Guardians…
I hope they use Pip as well!