An iPad/MBA hybrid that has iOS and also runs desktop OS X would be interesting, but I'm not really sure if the demand for that exists, or if Apple would even be willing to natively add touch to OS X just to be able to meet that questionable demand. Windows + Touch has always been horrible, and OS X has very similar mechanics and interfaces.
Would I buy one? Probably, but I want to have as few devices in my go bag as possible - I travel 60-80% of the year, so one less device would be stellar.
What do I honestly expect from the 2014 MBA? Thunderbolt 2, Latest Intel processors, Intel Iris or similar iterative bump from current on board graphics, IPS screens, possibly a slightly reworked chassis for an updated design.
Wishes?
-TouchID -- I absolutely LOVE TouchID on my iPhone 5s. Would love for it to be integrated into the new MBA.
-Fully integrated SD Card slot. It's unacceptable that the SD card sticks out. I have a cool flush SD card that holds a micro SD card inside of it because I've broken a couple in the past.
That being said, I'm not in the market for a new one unless it prints money and glazes donuts in its spare time. My fully loaded 2013 MBA is fantastic and I absolutely love it.