I already somewhat prefer my Druid for 5-man tanking (considering Swipe's ability to easily hold several mobs to be more important than a Warrior's active defences in current content).
I wouldn't take the Bear armour buff as gospel just yet, even though I was the one that posted it here. I've seen a few posts reporting changes to several item's armour for both plate and leather and one reporting an unusually high dodge per AG rate for Bears. I suspect Bliz is kicking the tires on a few different approaches.
I'm expecting that all three tanking classes bring enough to the role for tanking players with characters of each class to be desirable as main tanks for 5-man groups and to be valued in the role in raids as well. The tank/DPS hybrid gets the best active defences and the widest range of tanking skills, the tank/heal hybrid gets the best ranged threat and doesn't need to build rage at the start of fights, the tank/heal/DPS hybrid gets just a tiny handful of tanking skills but the best raw physical survivability.
I wouldn't take the Bear armour buff as gospel just yet, even though I was the one that posted it here. I've seen a few posts reporting changes to several item's armour for both plate and leather and one reporting an unusually high dodge per AG rate for Bears. I suspect Bliz is kicking the tires on a few different approaches.
I'm expecting that all three tanking classes bring enough to the role for tanking players with characters of each class to be desirable as main tanks for 5-man groups and to be valued in the role in raids as well. The tank/DPS hybrid gets the best active defences and the widest range of tanking skills, the tank/heal hybrid gets the best ranged threat and doesn't need to build rage at the start of fights, the tank/heal/DPS hybrid gets just a tiny handful of tanking skills but the best raw physical survivability.