Flights could be cancelled if the airport closes. BUT they are cancelled for the time they are scheduled. The flight itself should NOT disappear. LY028 on Oct. 30th, WILL fly, it just may not fly on the 30th or at its' scheduled time. Totally eliminating that flight would cause huge number of passengers to have to fly on other flights. Since there is only one flight a day involving Newark, I find it unlikely it would vanish completely.