Let’s say the game developers get what they want, eliminate bots, silver sellers, real money traders and have the game economy more open to allows free trades. If they also lower taxs on the market and silver making job classes to improve player quality of life, they might be looking for a new silver sink.
What about creating 6 new basic armor attributes. You can get 50 levels of evasion, magic resist or hp/def for any of the armor types. So for example level up plate evasion, gives incremental increases in evasion the more levels into the mastery. It needs testing and balance and for cloth’s increase in sp it needs to be reworked to incremental magic resist? Not everyone wants sp, maybe 15% magic damage reduction and increased hp per attribute level?
This can provide a new silver sink and players will like the flexibility it provides. Also wizards who feel like they have to go full con to not get one shot can get hp from this mastery and put stat points elsewhere.

