Could drive Apple's 4K Cinema Display with 1.5x the resolution (2.25x more pixels) of the current Apple Cinema Display.
I've seen a 27" 4K IPS display for as low as low as $2300, and I've seen 50"+ 4K HDTVs for $1300 and $1500. I have to wonder if a Mac Pro update will also get 802.11ac, which also means new AirPort products, and a new Apple Cinema Display, which likely means following the new iMac styling and going with 4K if the availability for quality panels and price points are within reason. I could see them starting with that 27" product for 4K displays, as well as raising the price past $999 for 4K. I think an extra $500 for 4K wouldn't be a deterrent to that customer base.
PS: I don't think the 27" displays will get 2x like all the iPod Touch, iPhone, iPad, 13" MBP and 15" MBPs have received. I think they'll get 1.5x which brings the 2560x1440 display exactly up to the 3840x2160 of UHD 4K. I think Mac OS X has already been made to work with this size without affecting the GUI elements.
PPS: Anyone still holding out hope for a 17" MBP? I do hold a tiny sliver of hope that Apple simply wasn't able to release a 17' MBP because they want the iGPU to be at least capable of pushing the display and it simply wasn't possible to push a 2x 3840x2400 WQUXGA display with Ivy Bridge and/or to get quality panels at a reasonable price last year.
Edited by SolipsismX - 5/2/13 at 6:57am