I don't think Bony would come to us. He's leaving city because he wants games. First team football every week. We have Lukaku and usually only play 1 up front. Ok that will change for some games but bony will know at best he would be competing with Lukaku/coming on for the last 20mins. Slightly better than what he's getting at city but not that much better.
At stoke he's the main man. He'll start every game, play centrally, and with old man crouch his only competition.
It's a shame but I would do the same if I didn't have any connection with EFC.