Nether Spilling into caves

Since we recently got a nether update and next we are getting a cave update why not combine the two! Why not have a large lit nether portal that can rarely spawn in the caves guarded by Piglin's and Piglin Brutes. The portal could also be surrounded by a mini nether cave that may block off another part of the cave forcing you try and pass the Piglin's to continue to explore. This would be mostly if not only found in the large caves. If you really wanted you could also make the Warden and Piglin's be enemies which could add lore into the game. E.g the Piglin's are trying to invade the overworld but the Warden's are trying to stop them!