Retail only
We can enter any faction’s City and be friendly to both factions
It’s convenient, there’s no need to be limited by factions anymore, now that the faction exists just meant to make the game more cumbersome
We can freely trade, or team up with friends from any faction to join random dungeons and random battlegrounds together
Only optional, players who prefer FACTION can still keep them
It’s about time, why don’t Blizzard do it?