Preview at WWDC likely in June, followed by September launch.
Apple to Release Thinner MacBook Pro at WWDC
The models are to be released at Apple's Worldwide Developers Conference on June 11 and will also include flash memory to "cut startup times and extend battery life". The report is likely a "controlled leak", something that Apple PR has been known to do in the past to share product details.
Apple Inc. is preparing a new lineup of thinner MacBook laptops running on more powerful chips made by Intel Corp., people with knowledge of the plans said.The MacBook Pro lineup was last updated in October of 2011, though it hasn't had a substantial redesign since 2008.
The MacBook Pro machines, to be unveiled at Apple’s annual developers conference starting June 11, also will feature high- definition screens like those on the iPhone and iPad, as well as flash memory to cut startup times and extend battery life, said the people, who asked not to be identified because the plans haven’t been made public.
Bloomberg also suggested that Apple will announce the launch date of the OS X Mountain Lion release that Apple previewed earlier this year.