Love the look of the paintjob (that's blue, NOT purple, for the record). Also, from the video, it appears that they have indeed added a bed cap to the full F-150 body as opposed to just blending two separate pieces together, or at least they were planning to. From the looks of it, the body will fit either way.
Also, here's a pre-wrapped El Diablo in the background...
And look at THIS:
Definitely a ram.
Man of Steel? Most likely, because Ram did have a deal with the Man of Steel movie.