Intel's upcoming Z370 chipsets, for its Coffee Lake-based processors which are schedule to start rolling out in August, will not feature integrated Wi-Fi and USB 3.1. Intel originally planned to release the Coffee Lake platform in 2018 with the 300-series chipsets to feature Wi-Fi (802.11ac R2 and Bluetooth 5.0) and USB 3.1 Gen2.

Sounds like bullshit. Actually Intel intentionally protect some manufacturers of USB and other controllers. Motherboard vendors also very much like such approach as it allows to offer premium models with such features and get bigger margins. This story was same with USB 3.0.

However, other 300-series chipsets including the Z390 and H370, planned for early 2018, will support Wi-Fi and USB 3.1 Gen2.

So, Z370 is planned to be ala P67. Get some premium cut from early adapters while selling them actually almost same Z170 chipset for third time.