Pro Worlds can be EASILY done on 4 courses.
Though I know NOTHING of the plan.
Milo could EASILY be set up to handle Worlds.
2010 Worlds (I think) is planned to be in Illinios (S. Chicago) at a location that will have 4 courses on site, as well.
As far as I have travel between venues at past worlds THIS would be MUCH appreciated.
Also having it at 1 location allows for more of a "festival" invironment.
Where spectators can be brought in to one site for EVERYTHING.
WHAT EVER venues are decided upon. This is gonna be a GREAT worlds.