Source: http://www.pushsquare.com/news/2014/11/sanzaru_games_crushes_sly_cooper_ps4_sequel_dreams
Well, this made me disappointed. I loved Sanzaru's work with Sly 4, especially after how much the third disappointed me (It was a good game, but strayed too far from the thievery theme of the past games, at least in my opinion), and was hoping they would make another game. I guess Sucker Punch could be taking the franchise back, but I'd love to see Sanzaru make a fifth game.