When we were rumoured to be in for Kiyotake, I had a quick look on a couple of Nuremberg forums to check what their thoughts were, and through the magic of Google translate, I was able to gather that they believed Kakitani would be their direct replacement should Kiyotake leave.
Kakitani currently also plays for Cerezo Osaka - the team that both Kiyotake and Kagawa formerly played for.