Game has been out for long enough and changed a lot, so it's not as hard as it was and maps are too small, not to mention that RNG on map layouts get so predictable after some time and makes game feel even more repetative.
Also once we finish Inferno, why are we forced to use quest system and listen to same thing over and over again with cutscenes that most got sick of? Why cant we have freedom to farm how we want and where we want with all bosses spawned and all WPs like we could in D2?
It would give people way more freedom and it's not like bosses drops are so good that farming all of them in one go would break game or something.
Also you have loot that's adjusted to AH, so it's obvious that it has to be less rewarding than it was in D2, but there's no item sink and by now only top items are able to sell, oh and ofc we can sell gold find + pickup radius gear as bots love it. How about you remove gold find and leave it so it's only gained by Para level? That would at least slow bots a bit.
And as there's no item sink and market gets oversaturated is there any chance of getting all loot to be bound on equip? That would solve quite few problems with D3, and AH would still serve it's purpose.
And do you have any plans to do those things in future?
AS for PvP I think dueling was smart move as you'll be able to see how it preforms so when real PvP hits it should be rather good. Kuddos.