TPU came across details of two upcoming Gigabyte motherboards; the ATX-sized G1.Sniper 5 and the Micro-ATX G1.Sniper M5. Both motherboards are made for the LGA1150 "Haswell" processor and use the Intel Z87 chipset. You can find all the details over here, including some details about Gigabyte's new AMP-UP audio subsystem.
The G1.Sniper 5 features four PCI-Express 3.0 x16 slots, which are electrically wired as x16/NC/x16/NC or x16/NC/x8/x8 or x8/x8/x16/NC or x8/x8/x8/x8, depending on how your marshal your pixel-crunchers. Three PCI-Express x1 slots take space in between them. In the storage department you get ten internal SATA 6 Gb/s ports, six from the Z87 PCH, four from third-party controllers. Connectivity includes AMP-UP 7.1-channel audio (detailed below), a combination of Qualcomm/Bigfoot Killer K2000 and Realtek RTL8111F gigabit Ethernet interfaces, ten USB 3.0 ports (six on the rear panel, four by headers), dual-HDMI and DisplayPort display outputs, and legacy PS/2 keyboard/mouse combo connector.