I don't think it would be a return for all those clubs at the same time! They would have to work it out. If a minnow club was lost because of a return of a well supported one I think that's still a better situation overall but I don't think it would necessarily come to that.
Phil Morris gave evidence in person at the save coventry speedway enquiry and did a good job. He has also made the show slicker by standardising things and meetings over the last couple of seasons have moved through more quickly.
If there's no premiership and the championship seemingly don't want to strengthen, my days of live speedway in the UK will be over. The odd meeting over BSN fair enough but I'm not paying £20+ to watch a couple of veterans, NDL riders and those who never made it, it doesn't float my boat. Amateur racing for free or £10 max then I would go.