And that’s the kicker: Imu will see that Luffy has Gear 5, the power of Joy Boy and Nika, and is ready for the showdown of Destiny…only to find Luffy really doesn’t care beyond “you tried to hurt Vivi!”, and when Imu tries to talk about the past, Luffy doesn’t care, and then Luffy just laughs at whatever true form(s) Imu has, leading Imu to get more and more enraged before going all out to destroy everything just to stop Luffy from being a nuisance, or maybe for Luffy to actually get a clue.
I’m not sure of “Yonko Battle Royale”, mainly because of Shanks going out of his way to not see Luffy for starters. Most I can see on Lode Star is Zoro vs Mihawk, because that whole thing apparently has to be witnessed and sanctioned like a world heavyweight title fight or witnessed and recorded like “World’s Greatest Swordsman” is something in the Guinness Book of World Records.