Will the various sound effects and the like need to be remade? I'm guessing the various physics assets are being pulled from Skyrim, but what about spell sounds and things like potion effects?
I think it might be nice to
I think it might be nice to have a new set of sound effects for the spells. If you can give us an example of some sound effects that you have in mind then go ahead. maybe some impact sounds as well for diffrent spells.

It's hard to tell at this
It's hard to tell at this point what were using from Skyrim or not. Throw up a few samples and we can probably make use of them somehow!