Am I the only one who wants to go back to Solstheim? It always felt a little weird to me that an island with a native Nord population doesn't even get a mention in this game. According to the lore, Dunmer refugees fled to Solstheim after the Red Year, but it doesn't say the Nords were pushed out.
So there's an island, just barely off the Skyrim map that has Nords and Dunmer, and presumably still an Imperial presence, and it just gets ignored?
Not to mention the Nords on Solstheim were very much into "the old ways" and old Nord traditions...and that's kinda what Skyrim is about as well. Seems like a shame to just pretend the island isn't there.
Lots of ideas for stories there.
Maybe the Thalmor now control the island, and your job is to invade it for either the Stormcloaks or the Imperials. Something werewolf related might be redundant, but lycantropy has come a long way since Bloodmoon.
Anyway, it's been a long time since we were last on the island, they could pretty much write any changes they want into it's history.
But creating a (sort of) new landmass is probably not something the developers are interested in.
So my guess would be that any new DLC will prominently feature one of the Daedric Lords, though the pessimist in me says it will probably add a couple new weapons or armor types, then throw together a few cookie cutter quests revolving around those items.