Details about Intel's future Kaby Lake architecture were leaked by Asian tech site BenchLife. As usual, we can't vouch for the accuracy of this information so take it with a grain of salt.
If the details are correct, the Kaby Lake processors will stick to the LGA1151 socket and will support motherboards with the Intel 100 series chipset and the upcoming Intel 200 series chipsets. This does not necessarily mean that all current Intel 100 series based motherboards support Kaby Lake, but we'll likely learn more in the coming months.
The 200 series chipset increases the number of PCI Express 3.0 lanes to 24, four more than the maximum offered by the 100 series. Additionally, the slides also reveal the 200 series will support up to six SATA 6Gbps ports, up to ten USB 3.0 ports, the new Intel Optane memory technology, RST PCIe Storage x4 Gen3 and Rapid Storage Technology 15.
The Kaby Lake processors are expected to be available in 35W and 65W dual and quad-core versions as well as 95W enthusiast quad-core editions. New features include increased core performance, enhanced full-range BCLK overclocking, and updated integrated graphics with 5K video support and HEVC 10-bit and VP9 10-bit hardware acceleration.
Intel plans to release Kaby Lake in 2016 and it will be the third generation made on a 14nm process as the 10nm process won't kick in until Cannonlake arrives.