Today's Ranger wears sheetmetal that largely dates from the 1993 model year (the bed on my '94 is the EXACT same bed they're using today, and the 2-door cab is also identical). In fact, with only small modifications, I could take a brand new Ranger SuperCab body and bolt it onto a 1986 SuperCab frame (only the front cab mounts are different). The only significant size change in the Ranger's 25+ year history was on the standard cabs starting in 1998, when the cab grew 3 inches in length behind the seat.
So how has it grown exactly?
Meanwhile, in this article, the author hints that Ford might NOT be using the F-100 name for the new midsize. First place I've read that.