I think next week Shoto will join Deku and Bakugo, they went first only because they know about OFA but all three were trained by Endeavor, it has to be the 4 vs Shiggy
Deku has to face Shigaraki at the end of this arc and lose, even kill AllMight in front of him, they must become nemesis, but not only in the eyes of the reader but in world.