Patch 9.2.5 PTR cycle started with all steam with the reveal of Shadowlands Season 4. Something gone almost unnoticed, however, is that the main feature of the new patch is already testable: Cross Faction play. Learn more about what changes with this and what to expect.
Friends ListThe first thing you'll notice when you open your friends list in 9.2.5 is that it now has different icons for players of your own faction and players of the opposite one. When mouseovering the invite icon for those players, the tooltip will tell you more about cross-faction.
Restriction Inviting Players from the Opposite FactionWhile you can invite players from the other faction, there are restrictions on how this invitation can be done.
You mayInvite players from your friends list Invite players from communities Invite players using the group finder tool You cannotInvite players using "/invite playername"* Right click their portrait and hit invite *You can if you share a community with the player CommunitiesCommunities have a new checkbox to enable cross-faction for that given community, turned off by default. After enabled, that setting can only be disabled if there are no members of the opposite faction in the community.
GroupingAfter you enter a group with someone from the opposite faction, small changes will happen in the world.
LanguageThe most noticeable change is that you will understand the other player as long as they are speaking common or orcish, including emotes. This change happens not only for party or instance chat, but also for /say. Note that this is only true for players in your group, you still can't understand language from the opposite-faction ungrouped players.
Before joining the groupAfter joining group Read more on wowhead.com