Though Kiwanuka would have been a welcome addition to the Super Bowl run, there was little doubt he would return for the '08 campaign. This time around, things are not as certain. Kiwanuka is not under contract for the 2011 season and even if he was, he is dealing with a potentially career ending injury.
With the success that the Giants defense has enjoyed without Kiwanuka, and the steady emergence of young Jason Pierre-Paul, the Giants may not be in the market for the ailing DE's services next year.
On a similar note: Keep an eye on the Domenik Hixon situation. The former Akron standout is certainly missed in the return game, but would likely find himself stuck at 4th receiver if not worse should he return next season. No longer under contract when free agency begins, do not be surprised if he looks to take his talents elsewhere in hopes of seeing legitimate time at receiver. The Giants will obviously want to retain him, but he just may be out of their price range if he gets interest from teams with less receiver depth.