If there aren't any outcrops on the crater sides, I think we're kind of out of luck as far as amazing discoveries is concerned. It stands to reason the bottom of the crater would be full of about ten feet of ordinary windblown dirt. A closeup of the heat shield would be cool, and may tell us something about how well the reentry went.

Does look like the bottom is already full of rover tracks, though. ;) (Cue Twilight Zone theme!)

By the way, the news release on this says the distance to the other side of the crater is about 200 yards! It sure didn't look that big to me in the picture. We need more 3-D shots.

I see no mention of the bright object (heat shield?) on the far rim at all in the press releases.