According to a recent news from MacGeneration , the new iMac 2014 will be unveiled by Apple next week, even if it is not 100% certain that it will be Retina iMac which recently shot in OS X Yosemite . Our French colleague points out that Apple will launch a new iMac 2014 next week, with a planned release late next week. Moreover, to confirm this news, he mentioned that one of their readers "who would receive the 27" iMac June 12, with confirmation that date by Apple in the morning, saw the date of receipt postponed to 18 in June received an email in the evening " . In other words, everything suggests that Apple is preparing to launch its new iMac line.
The new iMac will at least offer an upgrade of some components, particularly with regard to the processor, which will probably enjoy the latest Intel Haswell chips. It is of course also hope that they come with the new Retina displays.
Apple's current range iMac comes with model numbers iMac 14.1, iMac 14.2, 14.3 and iMac are the references that appear in Yosemite alongside new numbers iMac 15.1 and iMac 15.n, which suggest that Version Retina is the next model to be released.
If Apple were to release a Retina iMac, one would expect it to be announced at WWDC 2014 last week, since it could be a major upgrade to Apple's computer desktop.
Once we have a little more information on this new iMac line, and confirmation of exact specifications, I'll let you know.