saturn will control all the seras and defeat the SHs.
only to get backstabbed and incapacitated by kizaru, who is the real vegapunk. there's a reason why the first time we saw kizaru with saturn, kizaru asked him if he had ever actually seen vegapunk...
kizaru is a bit of a troll, after all. he will sneer at the defeated geezer and ask: "do you still believe you saw the real vegapunk?"
then kizaru lets the SHs go.
also kizaru is the only person who has been shown to have been beckman's (=OPverse's highest IQ) childhood friend:
1) childhood friends with smartest man in OP
2) accompanied by 'vegapunk's bodyguard' sentomaru
3) trolling saturn about actually meeting vegapunk
4) studying books in a snowy/northern setting as a child
but you guys keep denying the truth