Let's see...
* LTE support
* Wireless AC support
* Super Ultra HD screen
* Light as a feather
* Nietzsche mode - as you gaze into the reader screen the reader gazes back at you.
* Hand warmer mode, for those cold, cold winter months.
* BBacklight that can be turned up to act like a small shining star
* Teleport mode - press light button and sleep button, you'll be teleported to a nice, quiet, warm, and pleasing place to read, then teleport back to wherever you were previously when you're done.
* Money printer - print me some money ($100 bills and higher only)
I think that'd do for a start.
Oh and I could not possibly comment on wether any or all of those features are on the roadmap for upcoming devices
