WAR MODE, PVP TALENTS, AND MORE
War Mode tears down boundaries and server rule-set distinctions, allowing players on any realm to decide when they want to jump into a world PvP experience full of like-minded players in the ongoing battle between Horde and Alliance.
LEGION PVP POST-SEASON
Join in the PvP action and earn some new gear just in time for the launch of Battle for Azeroth.
WORLD OF WARCRAFT COMMUNITIES
Bring your friends and family of the same faction together cross-realm through our new World of Warcraft Communities feature.
DON’T FORGET: UPDATE YOUR DRIVERS
To make the most of Battle for Azeroth and avoid potential issues, it’s important to update to the latest DirectX 12 drivers. Please note that AMD and Intel GPUs will default to DX12, while NVIDIA drivers will remain at DX11 with the option to update at a later time.
Source: https://worldofwarcraft.com/en-us/news/21952591/the-battle-for-azeroth-pre-patch-goes-live-july-17th