Like I said in other stuff SE said they will add in the past/future

Wait till it gets released then complain after trying it out, YoshiP and them can make adjustments, fix, include other contents to counter what other players want (for example more non-instanced content/open world content in future) The devs can't make contents for both sides with every update, it's just too much work.

They will work on one side at one point, and another at some point, at least that's the way I see they will be working until they fix the core changes to the game. Like YoshiP said before adding a new content while the system is still not complete will end up with more work for the devs later on + may dissapoint some players when a content worked one way at one time and all of a sudden changing to something totally different. Once the core changes are worked on I'm sure it will give the dev team more space/time to work on contents for both types of players to try and make everyone happy.