It's about time. 7-speed cassette mixed with XX1 tech.
http://www.vitalmtb.com/product/feature/First-Look-SRAMs-7-Speed-X01-DH-Drivetrain-Takes-Downhill-Gearing-to-the-Next-Level,226
http://www.vitalmtb.com/product/feature/First-Look-SRAMs-7-Speed-X01-DH-Drivetrain-Takes-Downhill-Gearing-to-the-Next-Level,226