David Berenbaum (Elf) has signed on to write the screenplay, although no story details were revealed. This sequel has actually been in development since 2001, when actress/writer Bonnie Hunt signed on to write the script, but the project went through several rewrites and began to languish in development. The sequel has been inactive for years, mainly because both Robin Williams and Chris Columbus weren't interested in any of the rewrites, but they both sparked to David Berenbaum's story earlier this year and are currently attached.
Elizabeth Gabler and Marisa Gabler are overseeing the sequel for Fox 2000. The original Mrs. Doubtfire, which earned nearly $220 million during its domestic theatrical run more than 20 years ago, centered on a struggling actor and divorced father (Robin Williams) who tries to get closer to his children by pretending to be a Scottish nanny named Eupheginia Doubtfire.
Robin Williams most recently starred in Lee Daniels' the Butler, and he is currently shooting Night at the Museum 3. Chris Columbus is in pre-production on Pixels starring Adam Sandler, which starts production this summer. David Berenbaum's other writing credits include The Spiderwick Chronicles, Zoom and The Haunted Mansion.