This could be a repeat of the last Apple event.
New iPad Minis and other tablet announcements. At the end Tim Cook walks off the stage to applause with no mention of new desktops.
Afterwards someone asks Tim Cook about new iMacs and Mac Minis. "We at Apple feel most desktop users today will find the iPads, iPods and iPhones a great solution for their needs."
Later Apple updates their store with updated Mac Minis and iMacs. But to the horror of all those who have been waiting for so long, the updates do not include new CPUs or GPUs. Just a slight uptick in Ghz, the addition of USB 3.0 and more memory capability which the iMacs already have.
Then all hell breaks loose so Tim Cook responds to a conserned iMac user's email.
"Sorry we didn't have time to talk about the iMac or Mac Mini but we are going to be eventually discontinuing these products. So you better buy what we are now offering or you can switch to a PC with Windows 8. Ha,ha."