There will be no more midfielders, strikers, or goalkeepers. The only question is cover for Thomas Vermaelen whose Achilles heel injury seems to be dragging on forever.
Vermaelen's been a fantastic addition but is a known injury risk. While at Ajax he missed a substantial number of games in four out of the five seasons. Depending on how he progresses with his recovery in the next two weeks, Wenger seems to be leaning towards a late transfer decision bringing another center back.
In the Birmingham match, Johan Djourou and Laurent Koscielny showed impressive organization and strength nullifying set pieces. If they set the template with a similar performance today against a more highly rated City attack then Wenger maybe less inclined to make a transfer move.
With Vermaelen's return, either one of them could be his partner (Djourou is a better choice) leaving Sebastian Squillaci on the bench as injury cover.
Gary Cahill is again mentioned as a possible candidate but his price tag of £20m is a dampener. Even throwing Carlos Vela as a sweetener might not make that much of a dent in price for the value minded Wenger. There is a strong possibility that there might be no more additions in the January transfer window.