We want to make it clear though, excluding tanks from Arena or Solo Shuffle is not an option we are exploring. The feedback we have heard from you is that these matches are not enjoyable for the other players and more needs to be done. Our first attempt at addressing this problem in Solo Shuffle was to replace healers with tanks in matches where they were involved and to pair strong off-healing tanks (specifically Protection Paladins) against each other. But, in the case of Arena, the general survivability of tanks (particularly when they are also good at dealing damage or healing their teammates) can be a frustrating experience to play against.
One team needs to coordinate their burst and crowd control against the other team’s tank and healers use of their defensive abilities and positioning. In Battleground modes, like Capture the Flag, where a large team killing a specific player is the primary objective, the existing design for tanks can work well. Tanks have long been a design challenge for PvP as their abilities and tuning are intended to allow them to survive against multiple enemies or Dungeon and Raid bosses. We have been following the conversation about tanks in our new PvP mode, Solo Shuffle.