Intel is probably not counting on selling many of these chips, enough to release a new chipset. Don't forget that Intel didn't release a new chipset when they introduced the 32nm hexacores for the X58 platform. Back then hexacores were a niche, so it wasn't warranted, now hexacores are still a niche, but more importantly is that people who wanted or needed one already bought one of the SB-e ones.
The CPU upgrade alone will be a bonus for some people who are either enthusiasts or really benefit from lower power consumption while using software that takes advantage of all threads - but let's be honest, this isn't a number high enough to warrant a new chipset, for others it will either be a pass given they already have an i7-3930K or better, or a "Im still enjoying SB-e, my priorities right now are a new GPU and/or a new monitor, I'll buy the i7-4930K next year", so Intel doesn't have much financial incentive to release a new chipset, nor do motherboard makers to release new models.
For those who chose to upgrade, you're getting:
Quad channel DDR3 1866 memory controller - first consumer CPUs to feature it;
40 officially validated PCIe 3.0 lanes on the CPU (SB-e is not officially validated for PCIe 3.0);
Highest stock clockspeeds from Intel CPUs (good marketing, but in reality it's to somewhat offset the performance disadvantage compared to Haswell, but still it's a good metric to show off, not to mention it's an assurance that the chips can clock well) plus the fact it uses solder to connect the CPU die to the IHS.
Lower power consumption, higher IPC, more features (random number generator) and instructions.
So you get official PCIe 3.0 support which is what matters when making a long term purchase decision, along with IB class memory controller, capable of higher memory overclocks.
The chipset question is secondary. USB 3.0 being non-native is not a big deal when it comes to assessing a computer's performance in general. So, the motherboard has an extra chip, a native solution would provide a bit better performance and better power consumption given the higher level of integration, but it doesn't make a buying decision, especially when you're talking about an enthusiast platform that will be using high power CPUs and GPUs.
The lack of more native SATA 3 ports could be a problem, but the majority of people will have one SSD connected to one of those ports and then conventional HDD's which won't bottleneck SATA 2 ports. Even the niche enthusiasts could go by with two SSDs in RAID connected to the SATA 3 ports and then have the rest of the storage subsystem composed of HDDs connected to either the SATA 2 ports or even the non native SATA 3 ports, which, as far as I know, only seem to give problems when working with SSDs.
So it's not really a must for Intel to release a new chipset given that the missing features are not exactly missing and the platform is not high volume to warrant it.
Edited by tpi2007 - 7/31/13 at 10:39am