As satisfying an addition Season 4 was to the Lucifer mythos,the season finale, "Who's da modern King of Hell?” left fans with one hell of a cliffhanger.
Lucifer, or King of Hell,has taken his throne back in order to save his first true love, Detective Chloe Decker, and the rest of humanity from an apocalyptic prophecy. We conclude the season with Tom Ellis titular character reluctantly but resolutely looking out over his reclaimed kingdom.
Source: blastr.com