IMO the 12" MB was improperly named which created confusion in the whole line. The 12" MB should have been named and designed as the new retina MBA , and should have been a 13" screen with appropriate ports. I would see a MBA Pro to have a reduced by 1/2" bezel with a HD antiglare LCD screen -yes I like the screen to have aluminum bezels as the old models - effectively making it a 14"HD MBA. Retina not a must for fear of UI lag, and battery effeciency might take a hit. A thunderbolt 3 port, C port, and A port, the SDXC slot, and the earphone jack (I can see Cook wince at this post). 2.5Ghz Quad core would be nice, with 16G ram. Of course in my opinion, both the SSD and Ram must be replaceable, and...please spare the glue. Pure fantasy on my part that Apple would ever consider making a "pro" version of the MBA line, but I have been fantasizing of such a device. What would you see a MBA pro have as specifications?