Though Ivy Bridge-E is not too distant of a memory, Haswell-E is on the horizon. The enthusiast version of Intel's architecture will come with a new motherboard chipset, the X99. (As an aside: what do you think its eventual successor will be called?) WCCFTech got their hands on details, albeit some of which have been kicking around for a few months, outlining the platform.
Image Credit: WCCFTech
First and foremost, Haswell-E (and X99) will support DDR4 memory. Its main benefit is increased bandwidth and decreased voltage at the same current, thus lower wattage. The chipset will support four memory channels.
Haswell-E will continue to have 40 PCIe lanes (the user's choice between five x8 slots or two x16 slots plus a x8 slot). This is the same number of total lanes as seen on Sandy Bridge-E and Ivy Bridge-E. While LGA 2011-3 is not compatible with LGA 2011, it does share that aspect.
X99 does significantly increase the number of SATA ports, to ten SATA 6Gbps (up from two SATA 6Gbps and four SATA 3Gbps). Intel RST, RST Smart Response Technology, and Rapid Recover Technology are also present and accounted for. The chipset also supports six native USB 3.0 ports and an additional eight USB 2.0 ones.
Intel Haswell-E and X99 is expected to launch sometime in Q3 2014.