While it hasn’t been confirmed by an actual trusted source just yet, there is currently speculation that Tom Ellis’ Lucifer Morningstar may indeed be appearing in the “Crisis on Infinite Earths” crossover. Whoa.
Since we know nothing much about Lucifer’s fifth and final season, it’s possible that Lucifer is drawn back to Earth following the Arrow-verse’s “Crisis on Infinite Earths.”
Most fans may not remember, but Lucifer is technically a DC Comics property.