Well, i think Luffy is gonna end up captured & taken to Mary Geoise instead of Impel Down
So a Gorosei being present makes sense (I previously thought it was Kong who is accompanying Kizaru)
I also predicted that Weevil is getting captured & Bakkin gonna go ask for Help
(However i thought Fuji would capture him while Bakkin asks help from BB, not Marco)
Either way, i believe Oda is building up towards Mary Geoise Arc , not Elbaf Arc
So he will find a way to get a lot of Characters near Red Line