World of Warcraft senior game director Ion Hazzikostas dropped a bomb in a Blizzard broadcast today, one that many suspected would someday hit: At an undetermined point in the future, WoW will stop allowing add-ons to read combat events or auras.
Currently, WoW's most popular mods, including all damage meters, boss encounter information systems such as Deadly Boss Mods or Bigwigs, and almost all WeakAuras (mini-mods made using the WeakAura framework) use those hooks to show information on screen.