And it will be a hard pill to swallow but aside from occasional references it will probably be for the best for him to move onto new characters and ideas, compare calvin and hobbes ending to something like the simpsons or family guy that clearly should have died a long time ago. If anything itll be fans that keep it alive and thats a better fate than it turning to absolute garbage with countless retcons and reboots. Maybe at most he can just have alternative universes that dont intersect with each other but that would be impossible to ask from the fandom, its off topic but thats honestly what something like moral kombat should do at this point is just have separate universe versions of their stories that dont cross with each other anymore.