Back in January 2024, Tom Ellis (the actor that plays Lucifer), was interviewed and asked about the possibility of Lucifer returning in the form of a movie.
He stated that his return to the series would depend solely on the script's potential.
Ellis does not want the show to return for fan service or just for the sake of it, he wants the series to do well. He would have to personally approve of the script before choosing to reprise his role.
It shows how much he cares for the series in my opinion; kudos to him.
Link to article:
https://www.cbr.com/tom-ellis-would-consider-lucifer-return/
