Apple MacBook Pro
Apple's 15-inch MacBook Pro could see the addition of Intel's latest processors and a Force Touch trackpad. Reuters

Thinking of buying a new Mac laptop or desktop? Better wait a few days: refreshed versions of Apple’s 15-inch MacBook and 27-inch iMac are expected to be available in stores on Wednesday, according to sources speaking to French blog MacGeneration.

The new bigger Macs come on the heels of the launch of Apple’s 12-inch MacBooks in March. At the time, Apple also refreshed its 13-inch Retina display MacBook Pros with new Intel Core processors and a Force Touch trackpad. Force Touch, first introduced in the Apple Watch, enables a touchscreen or trackpad to detect the difference between a light tap and a hard press, allowing new touch gestures and controls to be used with Apple’s products.

In recent weeks, shipping times have slowed for Apple’s 15-inch MacBook Pros ahead of the refresh and the company has been gradually phasing out certain build-to-order models, according to AppleInsider. Most of Apple’s iMacs haven’t seen such constraints, except for 27-inch 3.4GHz iMac, with shipping times of one to two weeks.

Intel’s Broadwell processors are expected to make their way into the MacBook Pro this year. The notebook may also gain a Force Touch trackpad, following in the footsteps of the 13-inch MacBook Pro and the 12-inch MacBook.

In previous years, Apple had used its annual Worldwide Developers Conference as the stage to present its updated Mac lineup. But last year it chose to only showcase software updates such as OS X Yosemite and iOS 8, as well as a new programming language called Swift.