Here's what is written about in wiki...
"Contrary to rumors of its demise, MotorTrend confirms that "Ford is working on two new, smaller-than-F-150 pickup trucks, one based on the F-Series and the other a replacement for the aged Ranger compact, which is unchanged, save for facelifts, since the 1998 model year.
The smaller F-150 is codenamed P525 and may be badged F-100, the name of Ford's lightest duty pickups until 1982. At one point, P525 and the Ranger replacement were competing proposals, but with growing need for higher-fuel-mileage trucks, both projects will become reality in 2010 or 2011."