Two iPad mini updates in one year would be a surprise. Surely more processing power would be required to drive retina display. Is he saying first change would simple add the screen but keep internals? I.e, slower overall due to the need to drive 4x the number of pixels and shorter battery life due to the increased power drain.
It currently reads like a wish list to me.
I also think Apple will focus on services during 2013, to drive hardware sales, I.e., improved iCloud functionality, iTunes Match lite (free service for iTunes purchased content only), improved Maps on all platforms, Siri out of beta, iMessage / FaceTime improved and possibly merged, a unique way of accessing OS X desktop from iDevices.
I do also think Apple will launch something totally unexpected next year, possibly in the automotive space.
Finally, I think Apple has focussed on the consumer market for the past 4 or 5 years, but I think now they have a wider halo in that space, they will start to focus attention onto Pro/corporate space. Don't be surprised if they enter the server market again, but with an emphasis on cloud, messaging and simple business tool creation (apps), I.e., Next computing roots.