This will be the persona I'll be using to post on the hug from now on. In case you haven't twigged it yet, grimnir and Culann are one in the same. Some day very soon, I'm going to hand over the reins of Jarlship of Hugrunar from Culann to Grimnir, just so's there's an actual Germanic in charge of the Plaza Del Vikings, here.
So. You're not really gonna get a change in Jarls. Same jarl, different skin - Nordic, not Celtic.