When I am out questing, one thing that really breaks my game immersion is that suddenly the dark lonely crypt ( or any other quest location that you enter from the main map ) can suddenly become a hugely crowed location, with dozens of other players , most of whom are running around like crazy blasting everything in site. I shouldn't have to "compete" with other players in quest locations.
Please tweak the client code so players can enter any instance as a private/solo instance or let a group enter together, and scale the instance as appropriate.
Is this even an remotely possible upgrade?