I heard from a reader that, at a recent bourbon tasting sponsored by Beam Inc., a company rep mentioned that they are coming out with a straight rye under the Knob Creek banner. Currently, the Knob Creek line consists of two bourbons; the standard expression and a single barrel.
I have confirmed that the rumor is true, but the release is not imminent. Look for it sometime in 2012. It will be a straight rye whiskey, but no other details are available.