It’s doubtful that the Jump Street, Men In Black crossover will be made, says Jonah Hill

Over a year ago, Sony revealed that they intended on crossing the Jump Street universe into the Men in Black universe. Sony followed the big announcement with radio silence, then offered a title for the film a year later.

MIB 23 didn't have a set cast, nor were any plot details shared, but it doesn't seem like there's much hope on the dream of MIB 23 coming to fruition. According to Jump Street star Jonah Hill, the idea has probably been shelved due:

"I had the idea, but I doubt that movie will ever get made", Hill said to Toronto Sun (via Gamesradar). "They’re trying to make all the deals, but it’s kind of impossible with all the Men in Black stuff. The Jump Street films were so fun to make and the whole joke of them was they were making fun of remakes and sequels and reboots and then now it’s become a giant sequel, reboot. It’s almost become what we were making fun of and it’s hard to maintain that joke when it’s so high stakes".

Hill has a point, the movie that made fun of reboots and sequels is a reboot and got a sequel. MIB 23 could be just too much.