We have already heard a number of rumors that Apple will launch a 15 inch MacBook Air next year, and now according to a new report, we can expected to see the new 15 inch MacBook Air launch at the same time as new 11.6 inch and 13 .3 inch models.

As we heard previously, the new 15inch MacBook Air is reported to launch in the first quarter of 2012, so we will probably see the new MacBook Air range some time in March of 2012.

Apple reportedly is set to launch its new MacBook Air series notebooks with panel sizes of 11.6-inch, 13.3-inch and 15-inch in the first quarter of 2012 and will directly compete against ultrabooks from PCbrand vendors, according to sources from the upstream supply chain.

The sources noted that related upstream players have already started pilot production of the MacBook Air models and will add a 15-inch model into the product line to expand its reach in the ultra-thinnotebook market.

If Apple does launch a 16 inch MacBook Air, we wonder what plans they have for their MacBook Pro range, and whether Apple intends to replace the MacBook Pro’s with the MacBook Air.

Source Mac Rumors, Digitimes