I think they should add Mirrors that go onto other blocks like ladders do, and Night and Day sensors so like they be triggered when the sun comes up or the moon comes up. Please post anything else that you think would be cool.
From what I've understand putting mirrors into a game doubles it's render function. Basically it has to generate a mirrored version of everything you see on your window and then display that through the hole you see as a mirror. That probably won't be added. Now a night and day sensor would be nice, especially if it would work with redstone.
I kinda want a photometer in the game just so I can tell the light level. Other than that, I really want a photo sensitive block, if a certain light level is reached, block activates. I thought this would be especially nice with the redstone lamps.
Mirrors and Night and Day sensors