Let me be the first one to raise his hand and say that this is a bad idea. They are making Ace Ventura 3 without Jim Carrey. Young actor Josh Flitter will be playing Ace's son & taking over the family business in the future bomb.
Moviehole:
Young Josh Flitter has signed to star in the third “Ace Ventura” movie, with David Mickey Evans (“The Sandlot”, “The Final Season”) directing.
The Jim Carrey-less sequel sees the son (“Nancy Drew” star Flitter) of the oddball detective step into his father's shoes to take over the family business. Animals, Impersonations and Captain Stubing appearances ensue.