Yea what Grim said. Players 'personal goal'-driven attitude killed communities.
If you want to make a game with communities you have to make the gameplay require cooperation in most/every aspect. That's just not a part of mainstream MMO gaming, with even the last bastion (raiding) being worn down by raid finders. Anything else you might have needed another player for 5 or 10 years ago is long dead: crafting interdependance, class-unique abilities (rez, buffs, summon corpse, port, bind), group interaction for xp (a dungeon instance is just a race to the bottom while pressing damage skills). You have to understand that such a game isnt in the works though, and would be very niche.
Meanwhile, for mainstream products there is really no point to having servers that have no purpose but split your playerbase up, and most games would probably be fine with 1 server these days anyway (TOR and its ilk).