Upgraded MacBooks but no MacBook Air Retina at WWDC 2013?

The MacBook Pro line will received an upgrade in the processor department at WWDC 2013, according to recent rumours, but there will be no room for a MacBook Air with Retina display.
The news comes from well-informed KGI Securities analyst Ming-Chi Kuo, with AppleInsider picking up on the relevant research note.
Kuo expects to see a reworked version of the MacBook Pro at Apple’s June 10 event, with Intel’s new Haswell processors replacing the current Ivy Bridge units. Haswell CPUs will be far more energy efficient than the Ivy Bridge standard, making them perfect for the laptop format.
Intel will be officially taking the wraps off its Haswell range just a week before WWDC on June 3.
MacBook Air with Retina display
One popular MacBook that won’t be getting the overhaul many have been calling for is the MacBook Air. Kuo doesn’t believe that we’ll be seeing the line of ultraportable notebooks receive Apple’s Retina display technology this year.
Interestingly, Kuo believes that Apple will be keeping its entry level non-Retina MacBook with the optical drive for another year at least. The is because there is still a need for physical media drives in developing countries with limited internet access.
These newly souped up MacBooks should start shipping around the time of their WWDC unveiling at the end of Q1, says Kuo.
All in all, this wouldn’t quite match the exciting reveals of last year’s show, which saw the launch of the 15-inch MacBook Pro with Retina display, but prospective MacBook buyers might want to hold off another month or two nonetheless.