As with any major shaking up, it's uncertain how it will be received by either the teams or the fans really. Until things actually happen, all we can do is speculate. But I think if they want to maintain a strong audience then the rules changes will have to be more inline with clarifications and minor details that keep another double decker diffuser situation from happening.

As for the tracks, I won't be surprised if the audiences start declining quicker. Even with all the "side show" entertainment, it seems a lot of the younger generation just don't want to spend as much time at outdoor events. But we already see tracks where attendance is low, and the revenues from TV and streaming viewing are overcoming those shortages.

As for the DNA aspect... as I've said before IMHO it's been changing ever since the teams started really innovating. Going back to ground effect cars is a good thing really, but this time everyone is going to have it.