I thought Wenger had said something similar before. Maybe I'm wrong. Signing him for now will probably be to replace Arshavin or Nasri when they aren't able to play.
You're not wrong. There were reports that said that Wenger is desperate to keep Arshavin. And I strongly doubt Wenger will give up on Nasri, as he is one of the best players on his squad at the moment. I would be interesting to see who will he replace in case of signing.
I thought Wenger had said something similar before. Maybe I'm wrong. Signing him for now will probably be to replace Arshavin or Nasri when they aren't able to play.