Apple is gearing up to release new MacBook models in 2014 including a MacBook Air with Retina Display, according to a new report from DigiTimes citing supply chain sources. The story notes that while some Taiwan-based supply chain makers are expecting MacBook shipments in 2014 to fall to 10 million units, others are projecting higher numbers with the belief that Apple's will refresh of its notebook line later this year and release a Retina MacBook Air.

However, other Taiwan-based supply chain makers hold the opinion that 2014 MacBook shipments estimates may not be accurate because Apple will launch new models in the second half of 2014. Apple will reportedly launch a MacBook Air with Retina display, the makers said.

Last week, a forum post from a previously accurate source on Weiphone.com claimed that the MacBook Air would be updated soon, with new MacBook Pros to be released in September. Most notably, the report claimed that both will be accompanied by the release of a new slim 12-inch MacBook, which will come without a fan assembly and feature a redesigned trackpad.

It is also possible that the new MacBook Air mentioned in the report and the slim 12-inch MacBook mentioned in the forum post could be the same laptop, which would fall in line with a report from NPD DisplaySearch last year claiming that Apple is planning to introduce a 12-inch MacBook Air in 2014. That report added that the 12-inch MacBook Air would come with an ultra-high resolution 2304 x 1440 display, and was corroborated by the reliable Ming-Chi Kuo.

The post also comments on Apple launching a larger iPad with a near 12-inch screen, however a report earlier this month claims that the project has since been put on hold due to development hurdles and incompatibilities with the existing iOS ecosystem.