Why doesn't the club offer him a new contract? Alex can decline if he wants to "play more". They know he won't reject renewal, that's why.
I don't know what is happening behind closed doors, I have no contacts in there. I think he would want to finish his career here, but as he said himself it's very hard for him to be in this situation where he doesn't get enough time, so maybe he really wants to move and play regulary in his last days?
If DP decided to retire now he would get the chance to do it in Juve, but he wants to play more, he probably wants to play 2-3 years if he avoids injuries, and that is not possible, so if not this season then next we would come to the same situation we are having now.
If he leaves it will surely be sad day, but a day after which I can see week in and week out regular highlights of his with plenty of goals and skill, because here, this would not be possible.
---------- Post added 18.04.2012 at 14:16 ----------
Because he would have announced it at the beginning of the season.
You seem to be a smart guy, tell me why does the club not offer him a new contract? Wouldn't it make the things easier for everyone, fans and media? If Alex is determined to leave, he will decline it. Fans will know that he is leaving on his own terms and the club will have shown a classy gesture.
It's pure speculation, and as it is right now not true too.