I was hoping this beautiful cat that was datamined back in March would become one of the new Spirit Beasts.
I was testing at the training dummies on the beta tonight, and suddenly saw him fighting next to me. "Oh yay, it IS tameable!" I thought to myself, the split second it took before I realised it's tooltip said "SomeGuy's Guardian", and not "SomeGuy's Pet". That SomeGuy was a monk... And I have now tracked it back to a level 90 talent: "Invoke Xuen, the White Tiger". It's on a 3 min cooldown, and lasts for 45 sec.