So raiding is more or less ok, could use some tweaks but I am not going to bitch about that right now.
Disregard raiding for a moment, the other meat of the game is spoiled. 5 mans are ridiculously easy, need to tuned harder for sure. Same with questing. Both offer no challenge at all and it really puts me off. Trades and economy is not great either. Some clear improvements would be nice.
I would like if Blizzard would commit to:
1. Upping difficulty level in 5 man dungeons, bring back CC as well, meaning you have to use it to get through it.
2. I do not like the way talents are done, ok there, I said it. I miss trees and if you cant bring those back try something better than the current.
3. Threat needs to be a thing again.
4. The classes are all the same now. Was defined roles so bad before? I say that was awesome.
You know what is funny? Blizz plans to lower dps numbers and that in itself might be something I might re-sub for. That and harder quest/5 man content.