[@PerseusArchean] Thinking about her personality and upbringing I'd have to say she doesn't want to kill him. Unless he kills Odin. He isn't into conflict and she relishes the excitement of battle so in her mind he wouldn't be worth the time. She'd also be partial to Norse sensibilities and think him a little cowardly for preferring to attack from afar with magic and curses instead of facing his foe.

As for the side Jera is in in the war, she'd view it all as a childish tantrum like something Loki would throw. If it was a battle with real risk involved, she'd join in, but with Fenrir dead Ragnarok is off the table and she'd likely feel robbed that this is all she gets. She'd probably stand with the Norse pantheon honestly. Her time spent in the mind of Minerva has shown her what happens when gods and their children get paranoid about who will kill who, since that was literally what led to Minerva's birth and attempted murder while she was still in the womb.

Jera wants world-sundering battle, meteors plummeting from the skies, seas red with blood as tidal waves tear apart the coast as Jormungund thrashes and Fenrir, with his jaws so wide, devours heaven and earth. She wants to defeat armageddon. And if the Merged are trying to wipe out the gods that sired them, it's as close to armageddon as she's going to get.