imo putting the two new spirit beasts in major cities sounds like a disaster. i can easily see other hunters attempting to steal your tame, not to mention some of the grudgier ones just killing it if you got to it first. maybe the "challenge" involved in these tames is getting around nuisance players.

that's not even getting into the choice between the beasts; alliance gets a gorgeous ghostly gryphon, horde gets...a blue raptor. they couldn't even make it the spectral wyvern.