This looks like a cool place but it's also late 13th Century, well past the time that anyone considers to be the Viking era. AC games have included anachronistic buildings before, so I guess it's not totally out of the question, but I don't think there's been anything that far away from its own time.
Gods and Monsters always seemed like it was too ambitious of a schedule to me. The idea that the Odyssey team could build a new open world game in a little over a year, while still supporting Odyssey and also - presumably - working on some future Assassin's Creed game seemed far-fetched. I think Gods and Monsters is probably around a year away.
