After announcing his second retirement in 2020, this will most likely be Michael J. Fox's final on screen acting appearance; although he has expressed interest in continuing to do voiceover work.
Despite Michael J. Fox reprises his role last seen theatrically in De Volta Para o Futuro - Parte III (1990), effectively he was absent from it for mere five years, since he appeared as Marty McFly in live-action on Michael J. Fox/Sen. Bernie Sanders/Big Grams (2015) as well as in voice performances heard in Lego Dimensions (2015) and Back to the Future: The Game - 30th Anniversary Edition (2015).
Despite called a 'trailer' by marketing department, the piece is effectively a standalone short film, not repeated in any music video.