The elephant in the room that all ignore is what Norm said: "All volunteers".
Unless you have done it, (and very few have, particularly in the U.S.!), organizing a World Cup event is an immense amount of work. Everybody says , "Why don't we ..." when in reality they mean "Why don't you ...".
Running a W-Cup in the U.S. is quite do-able: why don't you ....
I am sure Norm, as a long time world-class competitor, is aware of that one. But a lot of the other ideas we get start with "why don't you guys just xxxxx?" and that is a RED FLAG.
It's different from FF, where the various events take different airplanes and approach than normal AMA events, and, the FAI events are pretty popular. FAI Combat takes different airplanes and is pretty popular (maybe the only healthy combat event) but in stunt, it's identical and aside from the occasional overrun, the competitors can't tell the difference. Speed and TR, for whatever their merits as events, are not well-supported and if the people who know what they are doing were running the contest, that takes up a large fraction of the potential US entrants.
We already have many well-run large contests that anyone can attend if they choose to, so why do you need to complicate it by adding FAI on top of it? Adding FAI (requiring FAI membership on top of the existing AMA) cuts many people out of the contest and that won't be made up with foreigners coming in for it. Igor and Ritchie can come to the NWR next weekend, the NATs, or Golden State, with no changes required for anyone and get exactly the same competition they would at a World Cup.
It's not like a "World Cup" has any great cachet that will raise your prestige - we had then entire US FAI team at a local contest last October, and we could field 5 legitimate FAI teams from the NAT entries just from the regular crew. We already have full crews of world-class judges.
The only way this could ever work is to change Expert at a large local contest to "FAI", run it with the existing people, not require an FAI sporting license, and just call it a "World Cup". I can't see that happening, or what the point would be.
Brett