Almost all of these will never happen, since they are against Apple's philosophy. They've tried to simplify things (which makes sense for a small device), and get rid of old metaphors (files). All most of these things do is clutter things up for the average user.
I agree, I think this will also be the reason why iOS popularity will fade over time. Either they adapt and make their OS more powerful, or people will move to alternatives that let them do more quicker. Simplification was a good selling point but features will become important again as smartphones become the central window to computing .
