Profootballtalk reports the NFL and NFLPA have reached an agreement on 2020 travel protocols.
Per PFT's Mike Florio, the agreement posits that there will be a preseason, though that is apparently still being negotiated. It had been proposed that visiting teams travel and return the same day, but it appears that has been scrapped. Every member of the traveling team will be required to wear masks, and buffets have been outlawed. That may seem minor, but it will make it infinitely more difficult to feed a group of literal linemen. If the league manages to pull it off, 2020 will be a season like no other, hopefully to never be repeated.