Not right now but that's a different issue. The two revisions of the chip don't work differently in terms of 160MHz. The general limitation with the chip being used is that 80+80/160MHz mode is basically reconfiguring the 8x8:8 5GHz radios to a 2 4x4:4 config.
Long story short, neither the R730 nor the R850's current firmwares have 160MHz or 80+80 support.... But that's on par with the rest of the market that uses Hawkeye.
