I don’t know if it would make sense for them to ever make Dark Souls 4 since Elden Ring is the more popular franchise and they’re probably going to stick with open world going forward. But I think it would be pretty sweet if they made a remake of Dark Souls with an open world or something.
Personally I’m not a fan of the open world part; the best parts of Elden Ring for me are the legacy dungeons and boss fights.