Well, Deadpool will have Foxverse characters and 00s nostalgia is one of few things that still sells.
I think one of the problems is that MCU fans are mostly general audience. They hardly ever read any comic book, they just like MCU because it's popular. I look at places like SHH forum and basically only NWH (mainly because of OGs returning) and Reeves' Batman had any activity there. The rest... Days of those proper fanboys are long gone. That always makes it easier to lose a big % of audience very quickly.