It was in fact previously known as the Predator B.
Would it make a decent CAS vehicle or would we still want a human more intimately in the loop?
It is an improved and enlarged Predator with a turboprop engine. A modified version called the Mariner is also being proposed to fulfill the Navy's BAMS requirement.

http://www.lockheedmartin.com/wms/findPage.do?dsp=fec&ci=15208&rsbci=5&fti=0&ti=0&sc=400