Bondurant
Ahn'Qiraj Raider
They should just get rid of the faction thing by going guild based, that would spice things up for Warmode lovers and make absolutely no difference for anyone else. And don't start with "muh lore", it's their IP they can do whatever they want story wise, they've already proven that many times.
Would that answer the competitive raiding / PvP population balance problem? Probably not, but we're at a point where if you can't fix the problem, just make something that will allow people to go around it. Let people play with whoever they want, some people will always minmax anyway.
About server population, they could upgrade the old server infrastructure by going full megaserver, there's no server pride anymore and it's more of a hassle nowadays with AHs and player interactions. AHs should be regional and it's plain stupid you can't trade potions or components to people from another server.
Would that answer the competitive raiding / PvP population balance problem? Probably not, but we're at a point where if you can't fix the problem, just make something that will allow people to go around it. Let people play with whoever they want, some people will always minmax anyway.
About server population, they could upgrade the old server infrastructure by going full megaserver, there's no server pride anymore and it's more of a hassle nowadays with AHs and player interactions. AHs should be regional and it's plain stupid you can't trade potions or components to people from another server.