Benchlife.info got hold of two slides from an Intel presentation for Kaby Lake which cover some of the features you can expect to find on the new processor family. As with all leaks you should ensure you take a dosage of Sodium Chloride while looking through the information.
The Intel 200 chipset will provide up to 30 PCIe lanes, 24 of which can be dedicated to PCIe slots and another half dozen for SATA 6Gbps. The chipset can also manage up to 10 USB 3.0 ports though do not expect to see all of these present on a board at the same time, there is only so much bandwidth to go around, as M.2 slots were not mentioned and will also share the PCIe pool. If you are wondering what Intel Optane Technology is you can be forgiven as apparently calling it NVME support would be too easy.
As for the processor, it will remain LGA 1151 with power ranging from 35W to 95W which means it should be compatible with existing boards, assuming a UEFI update is released. The processor will support hardware acceleration for 10-bit VP9 playback and 10-bit HVEC encoding, as well as supporting 5K video at 30Hz and 60Hz, impressive for an onboard GPU. The processors will be unlocked and have enhanced BCLK overclocking as well. As you would expect the CPU is ready for NVMe, Thunderbolt 3 and even Intel RealSense. Follow the link if you want to give your translator program a workout.