When Disney absorbed 20th Century Fox, there was concern from the fans that the notoriously foul-mouthed Deadpool would be diluted to fit in the PG-13 MCU. However, Disney boss Bob Iger made it clear back in February that “We will continue in that business. There’s certainly popularity with those types of films." By "those types of films", Iger is referring to R-rated Marvel offerings like Logan and the Deadpool movies that made blockbuster sums at the box office.
There has been no shortage of speculation as to how Deadpool could fit in the MCU, but we're still none the wiser with no announcements at Comic-Con or Disney's D23 Expo. While it's free from specifics or even being an entire paragraph, but producer/co-writer/star Ryan Reynolds has confirmed that along with writers Rhett Reese and Paul Wernick, the wheels of development are turning.
"We’re working on it right now with the whole team. We’re over at Marvel, which is the big leagues all of a sudden. It’s kind of crazy."
So, we're still none the wiser as to how The Merc with a Mouth will factor in, but the take-home here is that things are starting to happen. A Deadpool cameo in the tantalisingly titled Doctor Strange in The Multiverse of Madness seems likely considering the promise of the multiverse. Given his love of self-awareness, perhaps Deadpool could show up in post-credits scenes for the next few years in all Marvel movies. How every Deadpool is worked into the MCU, I think it's fair to assume we'll see him in some capacity before Deadpool 3 lands in cinemas. The announcement of a new Blade film starring Mahershala Ali as the titular vampire hunter suggests Marvel could be contemplating an R-rated side to the MCU. That said, what seems more likely is that Deadpool will continue to be on the fringe, and Blade will be retooled to fit the existing MCU. The $1 billion success of Joker for Warner Bros will certainly give Marvel food for thought in having films for both older and younger audiences under its banner.
Ryan Reynolds can currently be seen in 6 Underground on Netflix.