Here's why Tyler Hoechlin's Superman might die during Supergirl's next season.
1 / 8
Superman was introduced during Supergirl's second season and proved to be a hit with fans.
2 / 8
Superman only makes occasional guest appearances on the show, however.
3 / 8
The Flash season 5 finale recently confirmed Crisis On Infinite Earths is the next Arrowverse crossover.
4 / 8
A number of major heroes died during this comic event, including Barry Allen's Flash and Supergirl.
5 / 8
There's a good chance Superman will die during the Arrowverse version instead of Supergirl.
6 / 8
Crisis will be a game-changing event, and Superman's death would emphasise this.
7 / 8