I like that idea, but I would be slightly disappointed since that would be similar in ways to the original trilogy.
I'm thinking that the Norse Gods and other Gods have always been in the God of War world, but were more like lesser Gods with the Greek Gods being the strongest. Once Kratos killed off the Greek Gods, Odin and the other Norse Gods swooped in to become more powerful during the power vacuum, but there was still Athena roaming around in her spirit form.
I have had very little issues with Steam, and if a game gives me some sort of problem it usually has to do with the fact that it's an old game. The last game that gave me a problem was The Walking Dead Season 2 when it first came out, but it was a quick fix and I haven't had a problem with it since.
I wouldn't mind seeing it go to the PS4 but I could care less if it stays only on Xbox one cause when it comes down to it I'll be playing the beta for Titan Fall on the PC and if its actually good and not over hyped like I Think then I'll be buying it for my PC as well. Just wish I didn't have to deal with Origin though, it sucks.
At the end of the day I'm just going to stick with re-reading the books, since the tv show has deviated from the books on several big points. But I do hope telltale can pull off a Game of Thrones game (hopefully its a prequel!)
How does he look different to you? I re-watched the demo several times and he still has the scar on his right eye and it looked like the scar on his stomach was still there too, just a faded from time. Other than the beard he seemed similar enough to me. Also there was no indication that it wasn't the same voice actor, maybe he is just doing the voice different since Kratos is older and he isn't screaming and yelling.