We don't know if Luffy beaten into pulp after/before having a chance to transform into G4, I hope the rest of the spoilers would inform the fight more details
I have exactly similar thought, Luffy could just blown Katakuri and grab Brulee real quick and leave them stranded. That'll "defeat" Katakuri quicker than dead match rumble in the mirror world lol
Katakuri waiting on Sunny might be his plan to ambush the SH. He might have the confidence that he can Wipeout the entire SH single handedly.
I'm interested to see who's going to fight him. I'm hoping Jinbei would step up so that we could see his maximum power limit
I think there's no way Oda would end this arc without a twist. Bobbin with sleep sleep ability is a legit hint that SH member will be fell victim of his DF, or maybe even get captured/kidnapped.