I think what needs to be addressed, realistically, is what comes after F1. What can be done to replace the current unworkable structure?
Bernie has been nobody's fool, but the model he created can only survive so long - he's made his money from it, job done.
We ought to let F1 die, I truly believe that. Everything about it stinks. It is grossly over-priced and requires and persist on government 'sponsorship'. It is a redistribution of walth from the have nots to the have way too much. It has become a 'sport' with no integrity
How has this come to pass? As I say Bernie has been no fool. He required the complicit behaviour of the FIA. he couldn't just have the rights to the F1 World Championship, he had to own the very name and concept 'Formula 1' - otherwise race organisors who wouldn't pay the price for a WDC event could instead run a non-championship race, undermining the control of pricing (and offering the possibility, also, of alternative, competing championships). He also had to end F2 (not difficult at the time, it was disproportionally more expensive than could be sustained - rather like F1 is at the moment) or any potential competitor.
What should a new 'F1' be like, is the question I think. And I don;t think what a sutainable F1 ought to be could possibly work within the framework of the current model.
Would the majority of fans (or potential entrants, or race promoters) be happy with an IRL like series? I don't, personally, think so. So, how do you ensure the cost benefits of, for example, a single constructor championship with a multiple constructor model?
My own answer would be to demand that any constructor must make their product available to another two teams at a fixed maximum price. For engine manufacturers and tyre manufacturers use a formula, such as that you must make your product available to x number of teams depending upon how many alternative manufacturers there are at (again) a fixed maximum price.
The FIA can then sell the rights (on a fixed, short-term basis) to the World Championship on the basis of giving the organisor the rights to a percentage of the advertising space at the circuit and a fixed prize funding for championship events - as well as ownership of the TV rights.
This model starts to spread the costs among the competitors and organisors, and stops the power from being in the hands of any individual group.
Just a few ideas.