I'm pretty sure Bony's not going anywhere this season for a couple of reasons.
Firstly, with us he is, arguable, our most important player, the pinnacle of our food chain so to speak. At Man City, Chelsea, even Arsenal or Man U, he wouldn't be considered as such. With them, imo, he'd be viewed as an impact player from the bench. I say this because, as much as WE love him, he does lack the ball skills, touch and finesse a top four club would require for the 'astronomical' fee we'd expect for him.
Secondly, he has a serious commitment to Les Ãléphants and if they do well in the ACN, then he would not be available to play for any Prem team until Feb which could extend further if he gets injured.
I think the above reasons should give any team pause when considering signing Bony and if no 'astronomical' fee materialises, then he's ours for the remainder of the season at least.