On the other hand, the speculations pertaining to the upcoming Surface Pro 3 replacement, the Surface Pro 4, are rife. According to Design & Trend, the Microsoft Surface Pro 4 will be launched in two different sizes. Plus, both models will come preloaded with the upcoming Windows 10 OS. To further corroborate this claim, another report states that one of the models will be a 12-inch tablet with 2,160 x 1,440 pixels resolution, while the other one will be the alleged "Surface Pro Mini" tablet.
Chinese source cnBeta, however, suggests that the larger of the two models could come with as big as 14-inch display, instead of the traditional 12-inch screen seen in the Surface Pro 3. Under the hood, the devices will reportedly be powered by Intel Core M processors. The Intel Core M processor is known for its efficiency in exerting longer battery life from the device. However, it cannot beat the high-performing Intel Core i series of chips like i3, i5 and i7 seen in the Surface Pro 3.
Meanwhile, the alleged Surface Pro Mini could reportedly come with an 8.0-inch display to give competition to Apple iPad Mini and Google Nexus tablets. Even though there is no official information available on the release date and price, the Surface Pro 4 is expected to be introduced sometime in 2015 for a relatively cheaper price than the Surface Pro 3. Nonetheless, Microsoft's Jan. 21 event for Windows 10 introduction might give some scoop on the Surface Pro 4, says the same site.
The next iteration of Surface Pro will come out with Win 10, and roughly at the same time, that's for sure. However, I think the Mini was canned for good, and MS abandoned the small form factor market, especially since Win 8.1 is free on small tablets. ( see: http://www.pcworld.com/article/2139...iot-and-small-mobile-devices-but-not-pcs.html )
On the other hand, a tablet with a 14" display is very possible, and will follow the trend from SP1,2 to SP3.