I think Inu vs Jack is set.
Raizo vs Fukurokuju. is set as well.
Hawkins , Apoo , King , Queen , Perospero , Kanjuru ,an Orochi those are opponents who we dont have their final opponents yet.
we still have 7 scabbards , Sanji , Yamato , Shinobu , Maroc , X-Drake .
I think it is Obvious after this chapter Yamato wants to go the Rooftop and i think three others as well go to the Rooftop as well.
Marco , Sanji and X-Drake are candidates for that.
so we could have 9 shadows against the 2 yonkou again.