Please stop nerfing tanking abilities by continually damaging heavy arm and cost of block. Any additional changes you intend to be made for the sake of PvP should be added to battle spirit. You just keep smashing PvE tanking With changes focused on balancing PvP.
Moreover, ZoS, you reinvigorated permablock by adding the ability to alternate between Magicka and Stamina pools for block. While I think permanent blocking is a boring way to tank in PvE, if you keep nerfing block cost reduction and the time between block cost immunity, you are actually punishing those who aren't perma-blocking more than the people who are massively stacking block cost reduction items.