Hectic, HI! How are you?
The only thing I care about in the next DLC is an expansive area to explore. (new province or something on scale with SI)
I wouldn't count on a new province, that's roman numerals material. Nonetheless I'd like them to pursue this Add-on line of thinking, minus vampires, and focus on ways to improve gameplay, adding new content, of course, but making sure such improvements integrate seamlessly with the main game, the way Dawnguard does. And Beth please do pay close attention to the storytelling. I'm sure I needn't tell you there are other ways besides old fashioned exposition dump to convey a good one.