While it may be the ideal scenario it's still meant as a public server without specific rules and there is no booking system or checks for people who organize events on SIM2 right now.
IMHO this idea has a much higher chance of getting there if the situation is similar to how SIM2 (or SIM1) convoys are right now. So no approval, no specific rules, no specific requirements. Just SIM2 but without Border Control/Tollbooths/RailRoads etc. For that matter they could just do do the change on SIM2 and I'd be happy with that as well.