I have an idea based on what the players are doing on their own in pvp now.
Set up an official paid competitions. 3v3 2v2 1v1 where the player enters their gold to battle their opponent. upon winning or losing the winner gets the gold that was entered.
At the end of the match the system generates the moneys entered and distributes it to the winning team/person so that there is no 3rd party person involved.
Make rates reasonable so that people could do this on the on going basis. and add new maps for that.
Its fun competitive and a great way to earn extra cash for both serious players and novice……pairing will also be according to the players PVP experience or rank so that u don’t have a rank 10 duel vs rank 50 duel which would make it not so fair….and u dont want people to just take all ur money.