I'm sure we all know most of the buffs have been revamped (including Bloodlust at this point) to be capable of being brought by a seperate class (with a few exceptions).
Most (Improved Vampiric Embrace, Healing Stream, Judgement of Light, and Improved Leader of the Pack) of these exceptions are affected by the level of content, the gear and the playstyle of the group using them. But when it comes to two other buffs, each can be treated as near-mandatory to go anywhere.
The first would be Judgement of Wisdom. It doesn't matter if you don't get the healing from Light, but not having a Paladin can/does/will still affect the ability for your casters to control their mana. This isn't asking for more sources of Replenishment, but to be balanced around something a little easier. If you stretched a bit, you could talent into that effect on say a Shadow Priest or Affliction Warlock?
The second unique Raid buff would be 5% spellhaste (Wrath of Air). Why did this not get the multi-source treatment, and still remains by its lonesome next to the shaman that dropped a totem? This one I'd definitely give to the sad sorry spec that didn't even have a raid-buff throughout all of Wrath: The Holy Priest
Improved Vampiric Embrace could also take an axe, and just be shoved into acting similar to Improved Leader, triggering off of spell-crit instead of melee-crit (with a cooldown, of course).
TL;DR, can we see Judgement of Wisdom and/or Wrath of Air on other classes? Where, how-else would some of these be able to be trimmed down?