Last September, Microsoft announced the second generation Surface devices. Microsoft announced thinner and lighter Surface 2 tablet running Windows RT 8.1 OS. Last month, Microsoft started selling the 3rd generation Surface Pro 3 device and all SKUs going on sale from next month. Now, the obvious thing from Microsoft is to announce the 3rd generation 10.6-inch Windows RT based tablet.
As per Digitimes, Microsoft is expected to launch a 10.6-inch Surface 3 in October 2014, with production of components to begin in August and volume production of the tablet to kick off in September. As you expect, this upcoming Surface will be thinner and lighter than the previous version of Surface.