Reckless question

Honestly, i don't think Kai will kill his brother, because even if they fought really badly, Kai still loves his brother, and even if he is angry at him, surely not angry enough to kill him. Everyone says that's what will happen but i have serious doubts. I think they will try to escape, some kind of battle between the Ordinaries and Elites will break through, and maybe Kai will talk to Kitt, kind of relate to each other's pain or smth, and in the end, maybe Kitt will apologize and allow Kai to marry Pae. Though i thought about it, and something doesn't make sense about all of this, because if you saw the new cover on Fearless, there's blood on the crown. So maybe Kitt and Kai make up, and Callum gets really mad that Kitt didn't listen to him so he offs him, and then Kai and Pae kill Callum in revenge.
Tell me what you guys think, I'm really curious. <3