If there are a permanent Olympic sites that means the IOC voting members don’t get their bribe money anymore. Not going to happen...
To that end, my pick for the refreshed International Olympics would be an opening day of Gladiatorial Magnificence - that event being each member of the IOC is allowed to choose his own armor and weapon, and then made to face the lions in a vastly expanded new Coliseum
Another excellent reason to do it!