Microsoft Surface Pro 4 has long been in the news, but it is finally nearing its launch. Just before we witness the grand unveiling, new rumours point at a key upgrade in the upcoming hybrid.

According to a new report by WinBeta via an Arabic news channel, W4pHub, the impending Surface Pro 4 tablet will feature an extremely thin bezel inspired by Dell's XPS 13 laptop. The existence of the bezel in Surface Pro 4 will be almost non-existent on the top and the sides of the tablet, sources revealed.

This is an interesting upgrade but raises a few questions. The ultra-thin bezel will only be seen on the three sides but the bottom area will feature the usual bezels, which hints at the return of a physical Windows key. 

In addition, sources also revealed that the Surface Pro 4 will feature something known as a "smart frame." According to the publication, the new feature will physically change the size of the Surface Pro 4 when it is docked into a keyboard to 13 inches and shrink to 12 inches while using as a tablet. While this may sound practically impossible, it is achievable if Microsoft's idea of smart frame is on a software front. It also makes sense to add virtual frame on the sides and top to avoid unintentional touching on the screen to launch unwanted apps or commands.

Prior to these new leaks, Surface Pro 4 rumours have outlined key specifications expected in the tablet. Microsoft is expected to launch the new tablet in 12 and 14 inch variants with Quad HD 2160 x 1440 pixel resolution. The stylus pen in the Surface Pro 4 will be more intuitive and touch-sensitive than the Surface Pro 3.

Under the hood, the 2-in-1 tablet will run on new i3 Core, i5 Core and i7 Core configurations with RAM and storage as high as 16GB and 1TB, respectively. Evidently, the Surface Pro 4 will run Windows 10 and be priced at somewhere around $800.

Microsoft's product launch event is scheduled for 6 October at 10am EDT at the Skylight at Moynihan Station, New York, where the Redmond-based software titan is expected to announce the Surface Pro 4 alongside Lumia 950 and Lumia 950XL. There were also rumours about the Microsoft Band 2 release, but we will find out more on Tuesday.