Will there be factions that cannot communicate with each other, as in WoW, where who is an enemy and who is not is clearly defined? Will it be the cookie-cutter build, or will we see something truly new?

I'd like to see something unexpected. I'd like to see something similar to Eve Online. When you are killed, you respawn somewhere without your equipment. Most of it is destroyed. Whatever isn't destroyed is left on your wreck (corpse, in this case). PvP shouldn't be a meaningless grind for points so you can buy the next tier of equipment.