Yes, if you want to reach your maximum and be in the top tier of WoW Classic SoD Gold competition, you will more than likely need a few PvE-related items. And as the seasons progressed PvE gear only gets stronger. The need for it however, is determined on a by basis. Classes like rogue and Mage require PvE equipment to improve their offensive abilities, while Elemental Shamans Paladins Death Knights and even warriors during the early season are able to play by using only PvP gear.