it really will be a redesign or something, Apple is known to take a good thing from a product (Macbook) and make it available to the rest of the family like macbook pro
i am referring here to the energy efficient screen, i think they need to make macbook pros screen more energy efficient like the 12" macbook
and second, to be available in 3 colours to choose
and third think is more like a wish of mine to adopt the future usb-c and remove the old legacy like they always do, i don't think in 2016 will be the year for the 3.5 jack to be removed from macs (only from iPhone 7) but if they adopt usb-c instead of usb 3 they can achieve what they always want-a thiner and lighter pro mac