It seems to me that S5000 only continues with a considerable financial support from Barry Rogers and GRM.
Will Motorsport Australia continue to award the Gold Star to races with less than 10 starters?
After the poor numerical showing at the last round, we now have the news that the season is to be cut short, although a reason has been given.
The mid-year break after Darwin will allow for teams to plan ahead for both the Tasman Series and the 2023 S5000 Australian Drivers’ Championship, which is in the early stages of calendar planning.
https://autoaction.com.au/2022/06/02/s5000-championship-to-end-in-darwinGRM directly support three cars (out of 8 ) and, I suspect, have been doing very cheap lease deals and providing support for some of the relatively inexperienced drivers and overseas "Stars".
If, as Barry Rogers suggested, there is a possibility of selling the entire fleet of cars (17 or 18) and spares plus intellectual property to an overseas promoter, then poor utilisation of the cars and poor financial returns may result in a sale soon. One report suggested that an American Promoter is interested in buying.
I would suspect that GRM would keep one car back for their private museum.