Everyone know that Garnet is a leader of Crystal Gems after Rose Quartz but what if Steven take the leadership of CGs
My answer? No..... He is unlikely to take the leadership of CGs from Garnet because he's still need more experience to be the leader of CGs and plus he just a kid.
He will probably NEVER become the NEW leader of CGs ever! Not even if he is like the most powerful member! He still need more training
Bottom line..... Garnet will still be the leader of CGs no matter what.