I meant an actual part of Morrowind, perhaps the western part which is directly east of Skyrim. I know that Solstheim will be very similar to what Morrowind was but I was just suggesting a future mod.
Well, I heard that after Morrowind went all to hell the Nords gave Solstheim to the Dunmer, or at least gave up their claim to it. So technically the island would be a part of Morrowind.