The Dark and Light Realm

The Dark and Light Realm/dimension is meant to be this new dimension like the overworld. The realm will have 3 structures around your world like the Stronghold with a unique compass that points to it. The structure would be called the forgotten temple, it would have a unique portal inside. You will need a echo shards to open the portal but once you do you will see this new world. The realm has this eternal night with castles and fort populating the world rather than vilages. The castles would be abandoned but forts would have unique villagers and light golems. Instead of iron and gold this would would have steel and silver. Additionally coal would not spawn making it difficult to light the realm. The strongest ores would be the dark ore and light ore. Dark ore is found deep underground while light ore is in floating islands. Although, you will need a Dark pickaxe to mine light ore. The mobs will be variations of overworld mobs but more purple colored. Lastly, the final boss will be a dragon in a temple that would require you to place light ore in a slot to enter. The fight would be less difficult than the ender dragon but would still require end game loot. Once you beat the Night Dragon, once you leave the temple the realm will finally experience daylight. Although it can still turn night. You would have brought balance to the realm. Please, provide feedback and criticism to this idea, especially if you are a Mojang employee.