I have zero faith in Fox here. They succeeded with Deadpool because they had passionate people on it (Reynolds) and doing violence and dirty jokes is relatively simple. People came in droves. I mean, these days pg13 is more like a soft pg. Deadpool was a breath of fresh air by comparison.
FF is much more challenging when it comes to public interest, even before the shitty Fox movies (and that first wasn't all bad). There's plenty of great material. It could be epic as all hell. But there has to be a buildup. And they can't get even one basic FF story done well.
Sell it to Marvel. They can do a good movie, have a Spidey cameo. Let Torch cameo in the next Spidey movie.
Then go full Hickman.