If Roger gets & stays healthy and plays his normal schedule, here is a a nice prediction for him:
Djokovic is ahead by a gazillion points, but Roger Federer can be number 1 in the world again by next year. That's the beauty of the 52 week ranking system.
He has played only 3 tournaments this year, a total of 13 matches, and only 3 matches since the AO, has almost completed his 35th year, and yet has risen to #2 in the world in the strongest era in history according to some. Incredible, no?
What's going to happen once he is healthy and starts winning left and right this year while the others are tired from the early-mid season efforts? What will happen next year when he has almost no points to defend between the Australian Open and Rome or Roland Garros?
According to some seers, prognosticators, and astrologers, Federer is nearly ready to peak.
He is coming back. We won't know the day, or hour, but he will.