Our right side has Arshavin, Nasri, and Ryo. Wenger is going to keep Nasri for another season and let him go on a free, while Arshavin lost a lot of weight and looks fitter and more determined than he ever has for us. Also, Ryo is ridiculously fast -- I think only a fraction slower than Theo. He's got stepovers and tricks like Cristiano Ronaldo (who is his favorite player), and will learn from Arshavin how to find the back of the net.
Even though we're losing Cesc, the emergence of Wilshere makes it so we don't have anything to worry about. We need to focus on signing a CB and a LB. I don't at all trust in the fitness of Gibbs, Djourou, and Koscielny. If we get Phil Jagielka, things are looking very good for us.