We are getting a better idea of the first answer. NFL Media Insider Ian Rapoport hears that Griffin's target return is within five to six weeks. That means Griffin could be ready before the team's Week 10 bye.
Whether Griffin plays right away likely depends on how Kirk Cousins looks in his extended run at starting quarterback. It's hard to imagine the Redskins taking Cousins out of the lineup if the Redskins are in playoff position. If the team is losing or Cousins' play is middling, it shouldn't be hard to go back to Griffin.
This story will quiet down for a month, but it's safe to say we'll be reading and hearing a lot about the Griffin/Cousins decision in the final months of the season.