I would say it's possible to make some sort of spin-off, like one part of Bright's adventures, a game covering one big quest, or something like that. But making Hunters was already difficult because there were choices right at the start - which demonspawn was your ally and who was your romance. It added a lot of work, as far as I remember. That's why it's easier to write new protagonists.
Hello. In my walkthrough, Ari was indeed dead. But in the next part of the game, she was alive and went on an adventure. I don't think you need to consider the whole outcome, whether the demon will be a lover or a friend. Don't get distracted by extraneous things. In the end, you, as the author, have the right to choose the course of events that best fits the canon. For example, Raze, Bright, Ari, and Brash go on an adventure where Raze Jr. wants to bring about the Apocalypse. Here, the player can choose Ari, Raze or Brash as lovers and the rest will be her friends. In Demonheart Hunters, the player can support a wingless demon, and in the new installment, Raze Jr. (but you can make him an enemy in the story). So I guess you could just pick the canon version and cut out the other parts to make it easier. I think fans will understand and be excited for the new part. Either way, I'll be happy with any result. I want to thank you for your response and work.