A big expansion where we lend effort to rebuilding the South. I would like;
-New areas, at least 5 areas that are up to par (or superior) than those of the vanilla game.
-Interactions with the new Divine. Either the presentation of her coronation or interacting with her after she has officially taken the Sunburst Throne.
-Quests that respond directly to the main choices we made in our playthroughs. Helping the College of Enchanters establish themselves, helping Gaspard fortify Orlais' northern borders, helping the Grey Wardens re-establish themselves in the South, etc.
-2 new companions. A Mage for sure, to compensate for the loss of Solas. Then either another Mage or Warrior, depending on whether Vivienne or Cassandra becomes Divine in your playthrough. If Leliana becomes Divine, instead you get a new Spymaster. Overall, 4 potential new characters to the Inquisition. None of them romanceable.
-Minor additions that never made it to the original game. A storage chest, new Skyhold outfits, characters actually moving around and interacting with one another in Skyhold, etc.
-More Skyhold customization. Let us make use of the empty and still broken down rooms we are never allowed to make anything of.
It's a lot of content, but that's kind of Inquisition's trademark. I'm sure many would be willing to wait a long time for something like this, so long as it brings the most refined and best product. I'd pay something in the ballpark of $30 for it. Maybe $40.