Apple is going to hold the next big event this year that is 2017 WWDC in June and there is high chance that in the same occasion, tech giant will unveil the upcoming MacBook Pro 2017. Eight models of the notebook line have already been leaked because of the courtesy of codes seen in the latest macOS Sierra 10.12.4 beta release.

According to a MacRumors report, blog site Piker Alpha has sifted through the latest macOS beta build and concluded that Apple is already working on the new follow-up to the MacBook Pro 2016. A total of eight MacBook Pros will be going to hit the market this 2017.

Apple blog Pike's Universum has discovered that in the new macOS beta release there are three motherboards, which do not correspond to any current MacBook Pro model. The motherboards will not fit the future desktops, and they are using the exact same processor management data as the 2016 MacBook Pro models.

The 2017 line of MacBook Pro models is reportedly said to feature faster, more efficient Intel Kaby Lake processors. The blog also looked at the various Kaby Lake CPU versions currently available and discovered which chips will be used in each new MacBook Pro. 

The same report also indicated that Apple will release a 13-inch MacBook Pro with regular function keys and will be available in two models. Kaby Lake will be the stage of choice, affording the devices with CPU clock speed of up to 4000MHz.

Apple will also make three 13-inch MacBook Pros with the LED Touch Bar that was introduced last year. The series will also have of 4000MHz CPU turbo speed, also in Kaby Lake.

The flagship of the series, as expected, will be the 15-inch MacBook Pro with Touch Bar that the Piker Alpha blog report said will be issued in three variants and all powering up with Intel's Kaby Lake Core i7 processors. While the 13-inch MacBook Pros will be a mix of Core i5 and i7 chips, also in the Kaby Lake architecture

For the hardware and particularly graphic card front, there are two possible scenarios, the tech giant could pick between NVIDIA's GTX and AMD's Radeon Vega for GPU or settle with Intel's onboard graphics solution in the upcoming MacBook Pro 2017.

These new MacBook Pros could enter production in July 2017, with a 15-inch MacBook Pro version offering 32GB of RAM. The current machine's 16GB maximum was another sore mark for some power users and so that would be welcome news as well. However, all of this is just speculation until Apple's WWDC 2017 event in June.