I suspect Arsenal will sell now regardless of whether they find replacement. If Wenger can't be bothered to start him against Forest or Chelsea,when he's without a lot of players eg Giroud and Koscielny, I can't see him retaining Alexis for the final few weeks of his contract. If you think the transfer saga is undermining his game, then that is going to be an even bigger sore point if he blocks his move again. I'm sure he'll be a City player but Arsenal will be looking to maximise the fee and City to pay the minimum. Usual games. Just have to chill out.
If it falls through. Happy days in my opinion because we'll buy much bigger and better in the Summer (player permitting - but when hasn't a top striker become available in the Summer?)