Head of Lucasfilm Kathleen Kennedy attended a screening of Black Panther last night. During the event she confirmed to a reporter that the Boba Fett standalone movie is definitely not happening at this point in time.
Its not exactly a surprise that Boba Fett won’t be happening with The Mandalorian currently in production. The character shown in the photo from the set appears to resemble Boba Fett quite closely and releasing those projects too closely together it just may cause confusing among casual fans.
Before the release of Solo it was said that Logan director James Mangold was working on a Boba Fett movie, but he later dismissed the claim. Josh Trank was also supposedly working on a Boba Fett film shortly after the Lucasfilm purchase by Disney, but Trank was fired before the film entered production.