“The Book of Boba Fett”Wednesday, December 29, Disney+While we don’t have a new season of “The Mandalorian” this year (that’ll happen sometime in 2022), we do have the next best thing: a spin-off centered on fabled bounty hunter Boba Fett (Tamuera Morrison) and his compatriot Fennec Shand (Ming-Na Wen), as Fett takes the throne vacated by Jabba the Hutt on Tatooine.