More Evidence of "Sly 5 Master of Thieves?"

Today I was lurking on the Internet and found even more evidence of Sly 5 Thieves Be Forever. In my past videos and articles I have regarded Sly 5 Master of Thieves to be nothing more than a hoax conjured by an overly-anxious fanboy, but this potential Sly 5 retail poster has partially swayed me in the other direction. I first discovered it on FaceBook, but I don't know where the image originally surfaced. It seems strange however that retail posters would already be printed for a game that hasn't even been announced yet. If this poster is legit, it is even more proof that Sly 5 will in fact be for the Playstation 4. Also, the double-canes in the background look a lot like the canes used by Slytunkhamen Cooper from the picture in the Cooper Vault from Sly 3 Honor Among Thieves. This makes sense due to the fact that Slytunkhamen resides in Ancient Egypt, the very location Sly was revealed to be stranded in the secret ending of Sly Cooper: Thieves in Time.