God, I love this game so much, but the good ending is so bittersweet. I desperately want there to be another way out. Either for another ending to be added, where the queen has a chance to change, to leave willingly along with them. To find out what lies beyond.
Or for there to be some sort of epilogue (maybe even canonically it's because some post-game dlc happens), where they make the queen into a boss weapon/armor/ally summon/etc, letting the queen return to their side in some way. She may not be able to change as a boss, but they can, so maybe they can find a way to rewrite the rules, to give her a way out of that fated role, to let her travel by their side and find the change they now seek.