5 in a row against him is pretty good after being dominated for so long even if helped by no clay court matches. I think Feds chances will hinge on the courts being fast again.
Definitely.
I'm surmising here but I suspect he has a plan til Jan 2019 and no further. I suspect he hopes he can remain really competitive through Melbourne 2019 and then take it from there and competitive depends on fast courts
Melbourne '18, Wimbledon and Flushing Meadows with the fast court masters as prep and very little else besides his routine grass warm up Weber and perhaps Basel '18. All a bonus if he wins.
I suspect he realises that coming back rising 38 after taking the 2019 clay season off would be just too much even for him. He is going to be ultra picky and though we are obsessed with Fed V Nadal ( which fan isn't? ) he is not. he wants those slams no matter who he beats.
We are never going to see him on clay again partly because of Rafa but mostly because he knows he cannot win on it at his age.