I think you push it back a week. The only thing scheduled are the broadcasting times. No venue or team has a time set up, no tickets have been sold. Now I'm sure their will be some issues with the networks, and it may even cost the NFL some cash if said networks wanted to push back, but that is what this situation comes down to I believe. For decades it's been the NFL vs the players. This is an excellent opportunity for the NFL to sacrifice a small piece of their profits for what is best for the players. I think they would be crazy not to. Even if deep down they dont want to do right by the players here with so many eyes watching this situation I don't think they have a choice.
Time will tell though.