Id love that too but theyd better have a darn tootin good explanation.
At this point in time Vvardenfell, and Vivec city, is a Tribunal Temple reservation and not open to colonisation, or anything else.
I do not expect it to feature in the game, unless maybe you play a Dunmer or unless maybe not from the start.
It wouldnt make sense.
We may meet him, but not in Vivec city.
Alamalexia resides in Mournhold on mainland Morrowind though and I do expect her to be represented.
Sil as a rumour only, at this time he doesnt really involve himself with mortals anymore.