Even with the WR additions via the draft, I still think Rideau should make the roster, and possibly get some playing time. He's 6'3, and he's shown good hands, speed, and route running. He's only played in the Preseason, but that's the only time he's played for the Bears. He's a big reason why Hanie made the roster.
He'd in my opinion, make a nice possession receiver who, as of now, is the tallest receiver the Bears have.