There are two draft RFP's outstanding. One is for an ARH (Armed Reconnaissance Helicopter) which has also been referred to as the LRH (Light Reconnaissance Helicopter). The second is for a LUH (Light Utility Helicopter) which, as of the last draft publicly available, not required to be a twin but most of the "likely" aircraft are twins.
I do not have a direct link but I would assume Mr. Lappos or others would have a link to the draft RFP's.