The Doctor Who 60th Anniversary Specials revive fan-favorite David Tenant as the Doctor and revisit some of the series' greatest hits through three all-new adventures. The Star Beast introduced comic characters to TV canon, Wild Blue Yonder revisited an entity that never sat right with the Doctor, and The Giggle brought about the return of a classic celestial foe. A feeling of rule-defying wonder surrounds the saga as the Doctor deals with a repeated face, the fringes of reality, and an omnipotent trickster. They discuss identity and change and introduce Ncuti Gatwa's Doctor in a regeneration process unlike any other, opening the future of the series to new worlds of possibilities.
Source:https://www.cbr.com/doctor-who-fantasy-future/