I think this thread is great. Lots of interest and responses to an otherwise very quiet board.
From my perspective there are 2 ideas:
Full length endurance racing:
Races of 6 hours or longer. Format similar to Chump/Lemons/LAK1. This requires separate day, staffing etc. Logistics are much more difficult, but market is there as there are many Alberta based teams that travel 1000's of KMS per year attending events elsewhere. You can't argue with the success of this format as these races can often lead to large grid sizes and driver counts in the many hundreds, although the format of these races requires a separate dedicated day.
Shorter format endurace series. Kind of like a King of the Road but on steroids:
These are 2-4 hour races, usually as part of a sprint race weekend. Cars are typically sprint racing cars with additional prep for endurance racing. There could also be an opportunity to have other dedicated endurance cars join (ITj or E0, E1, E2 etc) In ICSCC as a comparative, many of these cars run both the sprint races and endurance series as part of the same weekend, often with a short prep (tire swap, aero removal etc). Again I think the market is there as it increases cooperation and teamwork and it allows more people to enter our sport. For many people the barrier is acquisition and preparation of the car, not the time or enthusiasm. I know at least 5 friend/ racers who would gladly jump in if there was a format to collaberate. A cool format if the schedule would allow would be (3) 2 hour races with a 4+ hour finale at the last race weekend.
I don't think anyone is looking at replacing or shaking up the format, I also don't think that the formation of a new club is required, I think it is about adjusting the format as time goes on to meet changing demographics and trends to maximize the impact of each event - and ultimately ensure the viability of our sport locally.