New Underworld dimension

The warden has no real reason to be killed right now except for maybe an advancement or two. The portal in the middle of the ancient city is a massive part of the ancient city and it would be a great idea, i wouldn’t be surprised if mojang is probably thinking of making this due to all the clues, for the portal to open up when you kill the warden, or perhaps a key is dropped upon the wardens death to open the portal to a new dimension. players have been wanting a new dimension for years.