In the Dragonball Movie, Super Android 13 Goku absorbs the Genki Dama to become more powerful and defeat his rival. Apparently (not sure), something similar could happen in Dragon Ball Super for a preview from the following episodes which was released.
That leads me to the question, who can absorb the Genki Dama? Is only the creator the Genki Dama who can absorb it? Or can someone else with good ki absorb it too?
We've seen in the first Genki Dama Goku made that someone with good spirit like Gohan could bounce the Genki Dama, may be someone with good ki can absorb it too?