Crazy situation here: people keep using their tickets while everyone waits for the music to stop. And the musician isn't saying anything.
I'm sure somebody has already gone to their boss this week and said, "Well, I may be taking next week off to go to Hong Kong. But I have to wait to see if United will honor my reservation."
I guess you don't know until the aircraft door closes. At least UA has said that if you get out of the US, they'll fly you home (if you trust them).
Logic would suggest this situation can't go on much longer. Of course logic has already flown out the window, so who knows.
Travel on!