My guesses are Apple will bring the iMac in line with the iPads and MacBooks and introduce a Pro model to the lineup. The current lineup is a mess, with no clear distinction made between the top models and the budget models. The 'Pro' tag will also allow Apple to play around a bit more with the iMac, and possibly even do the unthinkable and allow upgradeability to the CPU or GPU in a limited way. Of course this will only happen if they manage to find an extremely elegant way of doing it, akin to sim card changes in the iPhone. More realistically however, is for the iMac Pro to have touch screen, be VR ready, have much better speakers, SSD's and probably much better Siri integration like the Amazon Echo where it is always listening even when in sleep mode. Anyone else think iPad Pro is a probability, and if so, what will it need to earn the tag 'Pro?