I so think that is an overly ambitious prediction! Have they not seen the world rankings? From Bettor.com:
Phelps is scheduled to compete in three Men’s events including the Men’s 200m freestyle, 100m and 200m butterfly. Initially, Phelps will be up against Tae Hwan Park and Ryan Lochte in the Men’s 200m freestyle meet. More importantly, he has an absolute chance of winning the gold medal in this event. Hwan Park is expected to grab silver, while Lochte is deemed to win bronze.
I think an ambitious accomplishment for Phelps would be if he wins "just" two of those events.
If I was a betting man, and I am not, I would bet Lochte to win all his events since I do not beleive that Lochte has ever "phoned in" any race he has swam but rather comes to his meets prepared, dedicated, and hungry.
Finally, I think that the 2011 FINA World Championships will send a harsh memo to USA Swimming... This is a wake up call and we have work to do... Wait, who else has said that?