Sly Cooper: Thieves in Time (Sly 4) Concept Art

 Ahhhh, who doesn't love the silhouette of Inspector Carmelita Fox.

 Who could this be? A Friend? A Foe? The Main Villain of Sly 4 Thieves in Time? Only Time Will Tell (No Pun Intended).

 Yes! It's our old "Greasy Sweet" pal, Dimitri!

 "The Murray knows no song other than the triumphant horn section of his own triumph!"

 "Hey Bentley, I think I'm seeing things..."

 According to my calculations, this appears to be a photograph of Bentley.

                                       Some more Concept art of Sly from the E3 trailer