Y'all..what if Kakucho let his hair grow just that short cuz Mikey asked him to? I mean it (Kakucho's haircut) looks like Baji's when he's younger and Bonten Mikey looks like Izana (which makes him agree) so..
Y'all..what if Takemichi didn't time-leaped but shifted? Because he knew he couldn't save em all so he hope in his dream he can.
Or what if he's actually in coma? (Dreams that applied to coma ppl might be different due to the cause of coma)
Or could it be just a dream? He's unconcious after the train hit his head (some stranger pulled him) that cause trauma or a bit damage to his brain.