Raising DEX cap to 200 will never happen, Dante disabled the bandself command because people were healing too fast in his opinion, with 200 you could heal in half a second, 20 points shy of insta heal making you a god!
I agree that magic and melee skills should be capped but what should be that magic number? Hmmmm 170? Not sure
Pets cannot be nerfed because of PVP, all these pets were made for PVM, basicaly the whole balance issue comes from the fact that the core of the shard and all the scripts that were added are made for PVM shards, trying to fix anything to balance PVP would just end up unbalancing PVM.