I'm hoping for a timeline of:

Winter 2013: Mac Pro for sale, announced together with 30" 4K retina display

Spring 2014: MacBook Pro Retina updated to support 4K output

Fall 2014: High end iMac gets retina option

When any Apple product gets upgraded to the Retina display, there will be no subtlety, and you won't have to carefully search Hacker News to find out about it.

same thought. Another year I guess.