I almost wonder if this is not bad news for the Mac Mini.
Would Apple upgrade the Mac Mini without TB2 if new 60hz 4k monitors are available? I suspect not but recall that the latest iMac does not have TB2; I doubt Apple will be willing to give a performance edge in favor of the Mac Mini, especially if 4k support requires more than the very minor bump to the internal GPU that some are anticipating (eg Iris Pro graphics on base Mac Mini).
While I know a lot of folks are looking forward to exactly this upgrade (ie TB2 and Iris Pro graphics), could this news actually link the new Mac Mini release to the next iMac upgrade in order to not cannibalize some iMac sales?
It may be possible that new Mac Mini plus new TB2 monitor gives Apple higher revenue than some of the current iMac configurations, assuming Apple can maintain a monopoly of a sort on the displays for an acceptable period of time, so "losing" some iMac sales to the Mac Mini might be tolerable but I personally doubt this fits with Apple's strategy for the Mac Mini.
I dont know which GPU are capable of output to 60hz 4k so this may be pure speculation on my part, but then again that is what this thread is about
Cheers