Ok, I would like to expose my ideas, I know that it is very unlikely that there is a Superman series and less while this Supergirl has the series, but isn't the crisis the end of the arrow game? Arrow will leave and it may be the beginning of the changes, but if we think Supergirl will go to the movies, it will most likely be over soon. If that happens, I think she needs a successor series, but it still seems very unlikely to be a Superman series (WB does not eat or stop eating). So my idea is that Jon Kent, Superman's son, is the key! If you think they would have the perfect successor series, a character in which they would have total freedom just like the one they had with Supergirl, is a member of the house of EL, it would be an evolving and learning character, if I'm not wrong. the best way to present it would be in crisis that, for some reason, is adolescent and that a superman dies and I bet on Tyler for the emotional blow that is the reason why Jon Kent will decide to stay with Kara to learn from her and honor her father and be able to become a worthy successor until they give him the name of Superboy when Supergirl finishes and is ready to have his series, people would already have the familiar face of opening it in Supergirl.
