At the moment every patch brings out new features. Which is great.
Certain features or classes will most likely not be brought out, as they are maybe not as populair than other features.

I.e. pvp isnt as populair as pve, so more pve content will be brought out.

What if you create the option to let us, the gamers sponsor these "not too populair" new features.

Things that come to mind are:
- more pvp content
- better looking pvp armor
- npc item trading 1 hour timers, in which u can undo i.e. your myth item purchase
- more customisation options

You could set goals i.e. 10.000 dollar/euro to have 1 new race implemented etc.
If 15.000 2 new races etc etc... these features are nice, but not so nice that they are high on the priority list, but does give the gamers some option to help form the game.