As AdWeek points out, Diet Coke has done a "sleek can" before, and Diet Pepsi has done a "skinny can." But neither of those were tied to one slender person with a bunch of teenage fans.
To me the shape just looks like a red bull can, but the design looks like a "president's choice" brand cola (house brand at loblaws and real Canadian superstore). When your "iconic" brand cola looks like off brand cola you're probs doing something wrong.
(NB. I don't even really like soda, and I have no personal cola allegiance of any kind, just an observation).