NO, this is a new dimension it should be important the point of a dimension is not to add a few blocks and mobs thats the point of a BIOME, if youre going to add a new dimension make it worth my time, make it as important as the nether or the end not a random place you can go to.
MINECRAFT'S. A. SANDBOX. GAME.
You don't need even more added progression. "Beating the game" isn't really a point of Minecraft, it's to EXPLORE and BUILD and BE CREATIVE. Its a survival SANDBOX game. SAND. BOX.