KitGuru published details about Intel's upcoming Z97 and H97 chipsets, you can read about them over here. These chipsets are expected to ship in the second quarter, they will be accompany the Haswell Refresh processors.
Just like existing 8-series Intel chipsets, the new 9-series core-logic sets – Z97 and H97 – will support various microprocessors in LGA 1150 form-factor as well as general functions found on today’s platforms. Expect Intel 9-series chipsets to support six Serial ATA-6Gb/s ports, 14 USB ports (with up to six ports in USB 3.0 mode), PCI Express 3.0 x16 (via CPU, reconfigurable in case of Z97), PCI Express 2.0 x8 and so on.
There are three noteworthy improvements: support for solid-state drives in PCIe M.2 form-factor (PCI Express 2.0 x2 interface with up to 1GB/s maximum bandwidth), Intel device protection with boot guard technology as well as Intel Rapid Storage technology with support for PCI Express-based storage drives.