Sence we have no Idea exactly what will be presented we shouldn't assume RESTRICTING and BANNING are the same thing. I would suspect they will be discussing hovering over the runways and to close to other pilots being a danger which I don't totally disagree with and have been guilty of. AT most fields I have flown at it has been a rule that manuvers should not be done over the runway anyway at least during an event or fly-in. I don't think it will become that big of a deal anyway.