I agree, it’s too soon to complain. A lot of surprising things things, specially cliffhangers, change a couple of chapters afterwards (or more if a flashback comes). Kiro killing Doflamingo, Zoro being killed by the Yety cool brothers… But there’s nothing wrong in theorizing.
Did Luffy died and came back? I don’t think so. But if he did, on his own? Because of his will? The fruit? The hat? Because Brook helped him? (What if Brook’s awakening is helping others souls return to their bodies after they died? Maybe the reaper we saw about to kill Zoro was Brook “helping out”)
Is Luffy now Joyboy? Like Joyboy? Another Joyboy? Is being Joyboy a titlt? A state of mind?
The Cp0 boss was too weak to even try to avoid Kaido’s attack? Did he even try? The way heand the other agent touched their hats, is one of them a puppet (or both) and the guy “moves” from one body to the other (so hw wouldn’t care if Kaido destroyed it)