Hi these are my suggestions
Create a new currency which untradable
You can get new currency by doing (1 coin) lv 65 instances,pvp kills (1 coin)(lv 65 and solo only no group or alliance to prevent zerging)(maximum farm coins per week is 10 for both pvp and pve and per account)
With new currency you could buy stuff like
Tempering solution 30 coins
Feli socketing eternal and mythic 10 coins.
DR,IS,IO weapons 100 coins
SWB weapons 120 coins
Login once a day rewarded 5 ecoins but for an account with 8xlevel 65 characters only and account must be at least 1 year old.
Sell an enchantment stones guestbloom for 30kk which required water 300 times that giving randomly L110-L130 10-30 stones
Sell a mount guestbloom for 100kk that randomly give one of shop mounts(not all mounts just old shop mounts) required water 600 times
I believed it will give something fresh to the server if my idea is dumb or stupid I'm so sorry.