I'll give you my theory on why Dzeko will play for us next season. Like usual, I might be out of the ballpark with this but...
We gave them Diego for cheap. The team that apparently told us to f*ck off about Dzeko but still we give them a very good player. Media said Real, City wanted him. He's still at Wolfsburg. The player said he wanted to join us and most important, we did want a forward(Borriello) but only on loan with NO option to buy. Maybe because we already have a deal for next season with another forward?
That's just me hoping.