I to, got very annoyed with the fetch quests, but then it occurred to me why I was doing all these fetch quests. The point of DAI is basic domination of all of Thedas. In order to accomplish this, a presence must be established in all major zones and existing threats must be neutralized. I think they very nearly captured the essence of a real military campaign. Consider the conquests of Alexander the Great. See a city, sack a city, set up commanders to rule city, move on to the next.
I loved DAO and still play it. And after playing DA2, I gave up the romantic idea that we will get a game like DAO again. The landscape has changed. Go into any video game store and the shelf of computer games has maybe 20 titles, where the console games are full walls. If you go back and look at the feedback for DAO, console gamers found it incredibly difficult to play. I am just throwing out a number here, but I bet "gamers" out there are 80% console now. It is obvious that DAO was geared towards PC and NAILED it. But now, in order to meet demand, Bioware has had to cater to the consoles. DA2 was their first attempt and failed, forum posts from DEVS suggest they know it too. DAI, got closer. Bioware is trying to create a game, like Origins, but with better stability and control for consoles. And we all know that they are not going to write two different games.
With that all being said, things to steal from Origins:
PARTY TACTICS!! I love having a team of adventurers, but DA2 and DAI could almost be played and beaten with 1 player. The tactics in DAO was in depth. I did not like that my tank warrior could either defend a player, which meant they only attacked if that player got attacked, or they would attack my target. What happened to "attack the first thing that moves" tactic, which was an option for DAO?
Character Creation and Level -ups: Please can I manage my own character? Skill points are a must. If every level up for a warrior is only going to increase his str and con, then why have all the other abilities? What if I wanted a warrior with high crit chance and damage?
Abilities: The abilities of the PC's in Origins were outrageous, especially for rogues with the Awakenings Expansion. and oarticularly mage spells. Mages got nerfed in DA2 and stayed that way. Lets look at the spells. You have 2 active spells, a wall and a glyph for each element. WOW. In the end, I really didn't care which ability I chose, for any class, after about level 10.
Lose the Focus Powers: OP and broke the game. I like tactical combat, but even a Tier 1 focus power wiped a rift. Took on a high level dragon (23) with Tier 3 focus and took it from 85% health to about 30%. A real bummer as I was all hyped for a good long fight. Afterwards, I had no drive to chase down the other dragons.
Well, that's my two cents...