If you're right, Broken, it is amazing what a difference a year makes. While a year ago Rafa hadn't had as good a year as 2013, he had still won Madrid, still made the finals of two other Masters, and then won Roland Garros. This year in his 10 tournaments he's only made two finals, with only one title - Argentina, an ATP 250 event. Manacor, we have a problem.
Here's a somewhat disturbing stat. After winning Roland Garros last year, Rafa is 32-14 including 7-5 in the rest of 2014 and 25-9 this year. That's a 70% win pct, or 69.6% to be exact. That's a typical winning percentage for second tier players like Tsonga, Berdych, and Ferrer - or Roger in 2013 (73%).
All that said, I think his bounce-back potential in 2016 is high. Not likely to prior levels, but I could see the clay court season of 2016 being a bit of an "Indian Summer" for him and then, hopefully, he'll be able to sustain a slower decline for two or three years. We shall see.
I must say that, as a tennis fan, this year's Roland Garros is one of the most anticipated tournaments in quite some time. Should be very interesting. Despite wanting to see a new champ, there's part of me that wants to see Rafa shut the naysayers up with a decisive victory. Just a part of me!