edit: Blizzard has responded and will be hotfixing this and another issue for gear bonuses stacking: Source
There's some not-so-nice language in this, so I'll be using spoiler tags extensively.
In short, it was found last night that a number of non-attribute gear stats (such as +hit, as opposed to +strength) and enchants are taking up an aura slot, which have a maximum of 32 per character. For builds such as 2h fury, this is taking up as many as 24 aura slots prior to raid buffs.
Bad words that I don't agree with ahead:
SourceMost enchantments on items are no longer counted against the maximum limit of effects a player can have on them, so it should be much harder for a player to exceed their max limit on effects and have one be removed involuntarily.
This could have a drastic impact on prebis gear and world buffs depending on how Blizz addresses it.
Blizzard has responded and will be hotfixing this and another issue for gear bonuses stacking: https://classic.wowhead.com/news=295171 ... a-problems