This is the first I've heard of any rumor, no matter how small, about Dzeko leaving. And I am 100% in support.
The more rational side of me thinks having an experienced figure like Dzeko in the team can be beneficial and that he can play bum minutes to give the starters a rest, or come on when we need a late goal and maybe score a header or whatever.
But nah, fuck that. Watching Dzeko the last 6 months was revolting. Guy couldn't even control the ball or pass accurately within 10 meters. Get him the fuck out. Handshake him if we have to.