Cinema has been just as much on a steady decline as comic book films outside of a few A24 films which have been on a consolidated uptrend. Overall, it's just been over saturated with marketing and Oscar's buzz but from a numbers standpoint, bearish as the product has been sensitive cultured trash like that Amelia Perez film.
Scorsese's last film was in comparison to "The multiverse of madness" of his entire discography but he's an anomaly.
This is where streaming has capitalized in terms of revenue and just overall great bodies work

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It really just comes down to the next great film, whether comicbook, streaming or cinema in general. As noted above, if this next Superman movie does well (which 9/10 it will), comic book movies have not died but transitioned over to WB/DC.
But fụck all of that, we need to bring back nonsensical action similar to John Wick or comedy fụckery now that cancel culture has been dying down.