Guild Wars 2

+1, I would give you more if I could.
Very well thought out and planned.
+I really like the idea of alternate currencies for the Celestial Sigil. I belong to a social guild myself, those of us who aren’t in college, work full time. So Guild Wars is were we hang out, really. We wouldn’t be able to get to the fancier currencies, but gold wouldn’t be too bad. I really like this.
+Taking place in the Mists is also a really great idea. It gives the Guild a frontier feel. They could release events that incorporate the Guild hall, as well. Like: Abaddon has a general returning from some eldritch prison- his vanguard assault your Guild Hall. A- Net would then later announce, Oh no, an ancient evil has returned!
Not to mention all the other trippy stuff that could happen. Like running into your ancestors….
-Were you expecting any minuses? Go pat yourself on the back.

Also- Rift did something neat with “Dimensions” Private, friend, public. I know if my Guild was hardcore, I would want to show it off with my illustrious and rich mahogany filled Guild Hall. I really like your suggestion, I really hope A-Net considers this option. If they guaranteed it in an expansion, I would have bought it in advance.