It’s worth remembering that RCDB doesn’t list the rumoured Surf Coaster for SeaWorld Orlando. I could see that possibly being a 2022 ride.Of course, there's an exciting alternative to this grim prospect: The announcement of a new B&M could be right around the corner. I just have a hard time imagining where.
In terms of after 2022; there’s a decent chance that Chessington could be building a B&M in 2023, and there were rumours that Dollywood’s 2023 attraction could be a B&M hyper. Besides, there’s bound to be some new parks springing up in China soon enough that will need B&Ms!