I thought the whole point of Ragnarok was that the gods of Valhalla and the Giants more or less kill each other off in selected combats, but enough of the Valhalla gods survive to create a new world whose fate was not yet determined.
You could do the creepy boat of bone and nail grown in one of those Frankenstein bio-vats, especially since Chris can be hard to get a hold of.
Also I believe Wagner has Odin's spear, Gungnir, shattered, so Odin loses record of his oaths. Maybe the industrialist creates his own copy of Gungnir and has to research all of Odin's Oaths, which gives you an excuse to have him sack a library or museum.