Cupertino, California-based Apple will use its upcoming World Wide Developer Conference (WWDC) to unveil refreshes on most of its Mac product lines, according to Apple enthusiast 9to5Mac.

Citing unnamed sources, 9to5Mac reported that Apple would introduce new MacBook Pros, new MacBook Airs, new iMacs, and either a new Mac Pro or a new Mac mini.

Previous rumors also suggested that Apple would bring several of the form factors of its popular MacBook Air machine to its professional portable, by offering more processor power, larger display, and more storage with the same thin & light structure.

The Cupertino firm is also widely expected to adding Retina Display-quality displays MacBook Air models. The firm has also been rumored to be preparing to drop the price of its entry-level MacBook Air model to $799.

Apple is also expected to introduce a refreshed a thinner, 15-inch MacBook Pro that will feature a better processor.

Chief Executive Tim Cook’s keynote speech will kick off on June 11th. Apart from hardware announcements, Mr. Cook is also expected to announce iOS 6, and enhancements to iCloud.