Hey Sassy-I have one Comair flight, too. I called Comair and they said that, if the flight attendants strike, Delta will bring in other regional carriers to cover the Comair flights. If you're worried, give their customer service a call (800-727-2550). I found them such pleasant and helpful people to deal with. Comair is small so, if they strike, it's easy to get you on to something else and the whole of Comair won't go under-if Delta had gone on strike, they carry over 300,000 people a day and other airlines wouldn't have been able t pick up the slack, plus Delta might have folded meaning no one to help passaengers figure out what to do or write you over to other airlines.
On the question of timing, I have a friend whose dh is a pilot and she used to be a FA. She just let me know that it will take along time for the pilots to vote on this. She said it's mail-in ballot and the union usually does a 'roadshow' thing where they go around to major hubs and present the tentative package to the pilots before the vote. Then, if they voted it down, the union would probably go back to the bargaining table, not strike right away. Just thought I'd share that info from someone much mroe in the know than I.
I have learned way more about the airline industry/corporate-union relations due to this! LOL