There's been a lot of rumours regarding the future of the MBP and MBA lines. There has never been a time where the product lines were so similar, leading to some coming up to a logical conclusion of products converging. I see it that Apple 'could' go another route - keeping the MBA and MBP lines. Give the MBA retina and add touch to the MBP. Think of it like this: 11 and 13 MBA with retina - £100 cheaper for the base model. No touch. 13 MBP, with Touch. 15 MBP discrete GPU, with Touch. It would allow developers native testing of apps on the MBP, providing a massive 'pro' feature. This would lead to full iOS apps to be run on OS 11.0 by 2015. Probably a crackpot thought but anyone else remotely agree this may be possible?