druid tank requirements:
20% for kara is WAY too low, all blue gear druids can easily hit 25%+ pre-kara, 25% should be the requirement for kara. once they are out of kara, 30% dodge is a minimum, and it is very easily obtained(don't forget the NE racial 1% dodge).
HP, on the other hand, is a little harder, I've got pretty much all the tanking gear i can get from kara, but 16k health for 25man will require sacrificing other stats. I can hit 16k health, sure, if i actually bothered to fix my clefthoof armor and legs, then use netherwing trinket instead of badge of tenacity. but i lose too much of everything else trying to meet 16k unbuffed health for 25man. imo increase the 25-man requirement for feral tanks to 35% but lower hp to 15k sounds reasonable.