Formula by definition represents creative death. Like CSI, NCIS, The Big Bang Theory....when a show is on a cruise control nothing good can come from it. With film genres it's the same thing. If you have nothing new to bring to the table you're better off not bringing anything.
That's what killed the Western. Mangold did a great job using that as a metaphor for the CBM in Logan. We're 17 years in since Singer opened the door to the contemporary CBM via X-Men. Now is the time to be bold and take risks if this genre is to survive.