The official Patch 3.3.3 patch notes have just been posted to the official site, and among those notes was news of an upcoming to change to raid buffs.
Several raid buffs have had their ranges increased to 100 yards, up from 45 yards, to prevent select buffs from repeatedly getting applied and removed during highly mobile encounters. Some buffs, such as paladin auras, totems, shouts and Blood Pact are intentionally meant to have shorter ranges and remain unchanged.
The concept does have me intrigued as to what exactly they have planned, but the question remains: with paladin auras, totems, shouts and Blood Pact being unchanged, which buffs exactly are being altered? To my knowledge, the vast majority of complaints about moving outside of the range of buffs mainly revolves around aura effects like totems and paladin auras.
At this time Blizzard has not posted a full list of the raid buffs that have had their range increased, but, as they said, the list is fresh and still incomplete. This also comes at a time where many class specific aura buffs (like Unleashed Rage, Abomination's Might, and Elemental Oath) are being changed to passive auras not requiring an outside trigger such as a critical strike or a spell cast to activate.
Be sure to watch for class-specific updates detailing further changes, and we will keep you up to date with information as more becomes available.