I think it would be amazing if Bethesda made it to where we could go to other provinces in Skyrim using expansions. What do you guys think?

Yes but I don't think it would happen. I'd love to go to blackmarsh or something, or hell, maybe even back to morrowind?

That would be awsome bliviongate:

Yeah or the ultimate game would be an Elder Scrolls that has a giant main quest that covers all of tamriel.

What other provinces in Skyrim? Did you mean other provinces in Tamriel? If so, then my answer is no., concentrate on one province at a time with as much detail as possible without rushing anything or watering anything down.

I do want new areas outside of Skyrim but not necessarily parts of other provinces, if that makes any sense. Maybe a large island in the Sea of Ghosts.