Kronus cut off his balls and apparently he is dead??

Immortals can't die, and for an immortal as powerful as he is I don't think getting his sack chopped off would stop him.

Also the Protogenos (primeval divinities) cannot be defeated only kept asleep.

Does anbody know?

And if RR made a sequel series to HoO it would be pretty cool if Ouranos started re-forming.