[@vancexentan]

The way I see it, first of all for character interaction sake it would be best to have everyone in the same guild so everyone is [i]spawned[/i] in the same area.  Now as for the guild itself considering we would want to give players a lot of freedom to choose the guild should not be too specialized.  Maybe something along the lines of a dungeon raider guild or a city roleplay guild.

I also had the idea of it just being a random guild that was literally put together for the final day by a player that people could join for the game's last hours, so a bunch of people just transferred all their stuff and NPCs over for a final bash.