Looking like a fun expansion. Already seeing some "old familiar faces" back around DA

Before WoD arrives, you ought to plan on defeating Garrosh once the 6.0.2 pre-patch arrives (October 14th?). There's a guaranteed drop of the BoA Heirloom Weapons. And, if the loot tables on the Beta are to be believed, these will all scale to level 620 weapons once you reach level 100 regardless of the original raid level (just not LFR). So defeating him on Flexible (to be called Normal once the patch hits) should be good enough. Furthermore the weapons will no longer drop once Warlords is released on November 13th.

Thanks for the heads up - good to know.