One popular 'luz dies' fanfiction might be one where her sacrifice saves the Boiling Isles. It could show how her friends react to her death and how they carry on her legacy in the fight against evil. Maybe in the story, Luz's death is a turning point that unites all the different factions in the Isles.
It can be quite impactful. Some fans might be deeply moved by the tragic nature of Luz's death in these fanfictions. It can also spark a lot of discussion within the fandom about the characters' growth and development in the face of such a loss.
I have no definite answer for you. The availability of a comic after a character's death like New Power Girl often hinges on fan demand, creative direction, and publisher decisions. You might want to check comic forums or official announcements for any updates.
Quite a few characters meet their end. Some of the notable ones include [mention specific characters]. But the deaths have a significant impact on the storyline and the future of the comic universe.