Deep Dark Portal

It’d be nice to see something done with deep dark “portal” frames. If each portal created a different mini pocket dimension (an instance), it would keep players searching for more Ancient Cities. Maybe these pocket dimensions could each randomly generate a few attributes unique to that portal: 3 suns, Giant mobs, ships floating in the sky above a void, caves made of clay, trees made of TNT, maybe in some players might be able to jump really high/far, and in other portals players would be animals like cows or pigmen, etc. There could even be a boss,,, and maybe he would respawn at the start of every calendar week I’d really enjoy something like this, I think other players would too