Well, it has been teased that at least sometime in the future, Kirito plans to 'study abroad'. I'm not sure whether Fujino will weave the story of the game around Kirito being away from Japab, or use that gap to timeskip the end of the game so Kirito can see the consequences of Asunas actions, ie he comes back and she has kids.
But I think Inoda ditching Asuna is unlikely. We know Inoda is obsessed with Asuna. The likely ending is that he ends up living in the Yuuki house, still his fat, ugly loser self, knocking Asuna up over and over again to give Kyouko lots of grandchildren. Maybe married, maybe not. But the kids will be completely paid for out of the Yuuki household wealth.