I would have everything the same right up to when Bonnie stabs Kai loved that bit because it actually gave Bonnie some agency for once. She got to take revenge of her own volition as a personal vendetta not on somebody else’s behalf and I freaking loved it.
I’d have him crash Jo and Alaric’s wedding but I’d just have him cause a scene maybe even hit his dad with a particularly painful spell if he tried to challenge him. Kai goes on this huge rant because he’s always wanted to get how he feels of his chest and now his whole family’s here in one place so it’s the perfect time. Eventually, he says something cocky like ‘I could kill you all right now’ and Bonnie stands up and orders him out of the church. Kai plays it cool and scoff and ask what makes her think she can make him do anything and Bonnie just smiles and says ‘i beat you once I can do it again’
Then kai gets really close to her and tells Bonnie he’s not angry that she stabbed him in the other prison world and that not only are they even now, but he respects her. He declares very publically that she can do a lot better than Mystic Falls or slumming it around with the likes of Damon and tells her that she’s the most amazing person he’s ever met and the real reason he came back.
Just as he finishes up his heartfelt speech (and Bonnie is flawed) Liv and luke sneak up and hit him with a spell to knock him out but he’s too powerful for them and fires back accidently knocking Liv unconscious (everyone thinks she’s dead but it turns out eventually that she’s okay).
Kai’s speech surprisingly inspires Caroline and she makes the decision to go to NOLA/TO and asks Bonnie to come with her which she accepts. Then I’d make Kennett a thing (after already establishing a flirty sort of romance in season 3-4) and have Kai show up out of nowhere one day and give Bonnie the two men fighting over her she’ always deserved.
SEND ME A SHIP AND I’LL TELL YOU THE ENDGAME I WOULD HAVE WRITTEN FOR THEM
