Relationship with Songbird
Also according to Avengers Forever, one of Genis's enemies, Ego the Living Planet, will re-animate the corpse of Eon, a former elder of the galaxy and send him to revenge the Earth. This has special meaning since Eon became a friend of Genis at one time.
Genis will join the Avengers someday, after Songbird joins. To be a part of Earth's Mightiest Heroes and continue to live up to his father's legacy.
--Information written by Ryan
For more information on Avengers Forever, see...
The Villains of Avengers Forever
Issue Synopsizes of Avengers Forever