Not MCU-related but a new Planet of the Apes movie has been announced for 2024:
Kingdom of the Planet of the Apes
Will be directed by Wes Ball (The Maze Runner) and stars Owen Teague, Freya Allen (Ciri in The Witcher series), and Peter Macon. Release date is 2024, and most likely lines up with May 24, 2024 which was previously held by an "Untitled 20th Century Film"
Disney owns the franchise since it was a 20th Century Fox production, and the movies are on Disney+ just not in the US (Canada, Europe, Australia and New Zealand). I think it's a safe bet that the franchise will eventually see their way to Disney+ just prior to 2024 in the US. I could also see Disney exploring a Disney+ series to draw in new viewers. Also a good way to test the waters before moving on to other 20th Century properties, like Alien.