Plot theory
My prediction is:
Odin wins against Kintoki without any injuries and it goes back to a stalemate then Anubis and Rasputin both die simultaneously then it will be a 14th match where the gods have to choose someone else to represent them then it will be Odin deciding to go again but this time instead of Nostradamus, it will be Siegfried and brunheilde against Odin, Odin looses and Humanity gets 1000 more years.
Nostradamus would release Siegfried from tartarus because he's the only human who found a way to break through the bifrost and Goll will be his valkarie
The way Odin would loose is:
"The Trap of Arrogance": Odin views humans as insects and treats Siegfried as a mere "vessel" rather than a thinking, feeling threat. Having a human (Nostradamus) outsmart his divine security and his own prisoner out-prepare him would strike the ultimate blow to Odin's massive ego right before the fighting even starts.
Siegfried's Lore Advantage:
Because Siegfried knows the ancient secrets of the primordial gods, he wouldn't just be fighting Odin with raw physical power. He would know exactly what Odin's magic is trying to achieve, how the Yggdrasil tree operates, and where the weak points are in Odin's forbidden abilities.The Irony of the Vessel: Odin wants to use Siegfried's body to bring back the ancient gods. The poetic justice of Siegfried turning that exact same primordial energy or knowledge against Odin to permanently erase the Norse All-Father would be an incredible climax.
In doing this Brunheilde's desire to be with Siegfried comes true, Goll avenges her fallen sisters, Siegfried gets free and goes back to his wife and humanity gets 1000 years of peace and Gods leave them alone