I wish the Sky Dimension didn't turn into The End... Since they're adding so many new generated structures, maybe they could add one with a portal to the Sky Dimension... I miss the original End Portal Frame blocks which made me think of Sky Glass or something. It was so fancy...
You know, considering they bothered with that, it stands to reason Notch might have intended to add the Sky Dimension before launch, but was like "Not enough time, I'm too fat and lazy. Convert all the code to a stuffty place you only visit once ever and rather don't give a stuff to see."