So you think Ferrer will improve the H2H? I must disagree, I fully believe Federer will win any future match between them on any surface. The Djokovic argument is void; Nole lets him play the game he likes, with long grinding rallies. Federer doesn't at all.
on clay, in Monte-Carlo or Roma, Fed would not be comfortable at all imo, he could not trouble him as much as on other surfaces. And Fed has lost to far worse players in these tournaments as you know
Besides, I really saw improvements from Ferrer in last years, including the tactics adjustments against Fed which I mentioned. Ferrer often had the upper-hand in baseline rallies in their recent matches, but the serve and mental points still remain in Fed's favour.