Is it possible to Turn Diadem into a zone instead of instance?

[Jetstream_Fox]

Ok, but what about farming mobs? Can't solo that unless they watered them down...which would basically be no different to the open world mobs we got now.

Difficulty scaling could work, the more the players the higher the difficulty the mobs are. The mobs really aren't all that hard in diadem really, it's usually just the fact people spawn them over and over. Diadem is a mix between Monster Hunter and Diablo style game design and both of those games in some capacity allow for enemy curving and at times still command a high level challenge for solo players.