Actuly, Cameron has done many , projects over the years, for nasa, there was a documentry, not so long ago, on some very real ideas, and models he created to aid, some for thought on what would be needed, to do a mars landing, although he does not hold a title of an engineer, he is no doubt self taught, as he like many directors, continue to break visual and bring new concepts into the movies the create..... my thoughts anyway....
My only thing is if they were to consider a 3-D cam, to send with the new rover, i would guess the big question would be the power consuption, perhasps, this where his know how is going to be used....?