Time will tell. And what I'd like to see personally likely differs from what NHRA considers a profitable business model going forward.
Myself: A top alcohol class needs to be just that, alcohol. But it still isn't a cheap class and as I see it the only way to get the participation up is to increase the purse. It's never going to be a class that puts hordes of fans in the seats but rather a niche 'brotherhood' of dedicated racers who live for the comaraderie and joy of racing seriously badass cars. I don't believe they much care who's watching them.
If NHRA wants supercharged nitro then scuttle what's out there now, take the new TAFC combination, allow 90% and the same clutches the 'big boys' run, return to 1320 and be happy with the 4.90/300 performance that fans enjoyed for decades. A dragster should be able to run 4.60/315 if they wanted to expand the idea to TF. They'll still cackle, they'll still be loud as hell, they'll still look the same and I can't see any fan refusing to attend a national event or hang around the hamburger stands because 300mph isn't fast enough.
I like Pro Stock but it's not going anywhere. It's 'Pro Camaro' because nothing else is competitive other than perhaps a Mustang running a GM-based engine. It's a ridiculously expensive class to run; few newcomers are showing up other than the sons of longtime PS racers and fans consider it ho-hum after they just got through watching the nitro show. Why FX never took off still confuses me...6.80/200mph cars, 3 different brands with screaming brand-specific supercharged engines....cars that much closer resemble what comes from the factory. It's a class I would have liked to have seen replace PS completely but of course it wasn't my call. Pulleygate didn't help, either.
But that's just my preference. NHRA will probably soldier on with what they're doing right now in TAFC until the participation is so low they eitiher just kill it off or make Comp Elim cars out of them and PS slowly devolves into little more than an expensive filler class.