updated ICBM for true 7.1?

With DPL IIx on the scene, perhaps it's time for Outlaw to consider adding another rear surround channel to the ICBM. I would think that this should be a fairly easy update to make. I, for one, would be interested in an item that let me do bass management for 7.1 instead of 6.1. I know that I could use a splitter for the rear center, but wouldn't that defeat the "x" in DPL IIx?