MoP introduced a new pet family the Quilen (Petopia: Quilen), who allow BM hunters to battle rez other players with Eternal Guardian - Spell - World of Warcraft.
However if you are fast enough you can even battle rez yourself, because your pet despawns a little time after you died.
Idea seen in one of Kripparians videos.
So you create a marco with the following:
#showtooltip
/cast [@player] Eternal Guardian
And spam it after you died and your pet will resurrect you.