Fans asked Bioware not to have cities in DAI after feeling confined in DA2. This may be a factor in why there are no cities in DAI. And personally am glad to see the areas without them, but that comes from a personal bias against city adventures in RPG's.
I don't think anyone wanted "no cities" in DAI per se. It was annoying to to be confined to like, 8 boards or however many there were, over the course of the entire story, but that didn't sour anyone on cities. It just made them want more boards.
I really love the range of environments we've got in DAI, and I wouldn't trade most of them (I think we have one too many deserts), but I miss the city. Even back in 2012 and 2013, when I was rolling around on the ground speculating about what we'd see in DA3, I was all "Man, I hope we go to Val Royeau." When the jump to new gen consoles was confirmed in 2014, I was super excited for that. And we did (horaaaay) and now I hope we go to Minrathous. Or for real Val Royeau.
I really wanted to run around in a really awesome city. Denerim was... fine. Kirkwall was Kirkwall. TES cities are generally good, but even I have a tough time rationalizing around the fact that the imperial capital of this province has a population of 24.
More than anything, I miss my hilarious brothels. Where are they gonna put it? Not in Skyhold. Though I guess they could.
I think Novigrod or wherever it is will scratch my itch. Honestly, I'm enjoying TW2, but even if I wasn't, I'd play TW3 for the world experience it seems to be offering.