If I were to look at the game and the player base as it is right now, I would lock people out of content by level to improve the player experience based on hero’s path progress or some such - something like
New players get explore levels 1-5, PVP T1 and T2
Lvls 500-800 unlock explore levels 5-10, PVP T3 and Underspire
I’m not sure on exact levels but the idea is to give new players access to things they can be succesful at so they will enjoy the game more and feel less frustrated. They get the satisfaction of unlocking higher levels of content. And maybe that will also make the game a bit less overwhelming. Maybe a middle tier is needed, also. I’m less sure about that.