I have to say, many Federer fans you see on the first two pages have almost abandoned this forum lol. Goes to show how much the slam race matters to them. Anyway, I still think Federer can add ~2 majors to his total and that will be very tough for Rafa. 2020 will be key, he has to win at least 1 next year and with Djokovic's uncertainty it's absolutely possible, especially at AO and Wimbledon.
I am hearing that Craig Tiley is importing the Basel surface to help Federer. That will be a massive boost to his chances. Plus now that they do backstage draws at AO, Fed will get a US Open like draw till semi.