Well there's the Norse and Egyptian polytheistic mythologies they could do, but closer to home, and fairly closely related is Roman polytheistic mythology. Now that Kratos has taken down the greek pantheon the Roman Pantheon decides they can muscle in on a metaphysical power vacuum so Kratos has to fix what he's broken or see the Greek people come under the yoke of Roman tyranny.
Or Krato's son (daughter?) can step in and fix it. If it's a female relation to Kratos then we can have ultimate Bayonetta vs daughter of Kratos threads.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
