'Doctor Who' Animated Spinoff In the Works at CBBC
Plans for Doctor Who Season 3 (or Season 16 if you prefer, or Season 42 if you're really going to be like that) are currently stuck in limbo as negotiations 9or lack thereof) occur behind the scenes between series producer Bad Wolf (showrunner Russell T. Davies' company), series home network BBC, and the latest current streamer to pick up the TARDIS and run with it, Disney. The current political climate is not what House of Mouse anticipated when it originally picked up the series, nor have the ratings been what the Disney+ brass hoped*. However, the BBC does seem to be all that bothered; it's just going ahead with the next planned spinoff, Disney on board or not.
(*Truth be told, the only way ratings would hit what they wanted is if Disney had been able to go all in, Bluey-style. Even then, the political climate remains a factor.)
The next spinoff, following the current adult-angled The War Between the Land & the Sea, is aimed at a younger crowd and intended to air on the Children's BBC, CBBC (fondly referred to as "CBeebies"). This isn't the first time the BBC has produced a school-aged spinoff series; the last one was the only genuinely successful spinoff out of Davies' first reboot in the late aughts, The Sarah Jane Adventures, which ended when its lead actor, Elisabeth Sladen, passed away.