WoW's devs will continue to use private auras, which limit UI addon functionality, in The War Within: though they'd like to be selective to avoid cures 'worse than the disease'

World of Warcraft has a bit of a problem. Unlike an MMO like Final Fantasy 14, which makes user addons technically against its terms of service, WoW has always been very lenient with its UI—to the point where the game was able to leave its ancient HUD untouched until Dragonflight.

This has both benefits and consequences. In the pros column, Weakauras (powerful programmable UI elements) and the like allow for a huge amount of customisation and accessibility—as someone who has put a few petty auras together...