Based on the authorized # showing right now--I suggest they plan to start with the first flight on the 27th, see what kind of no-show factor hits them. Agents should roll the list from first flight to the next option.
Keep in mind there is an excellent backup to CVG on the 28th (since the 28th could be dicey with the buddy pass riders who are senior to yours.) Keep checking and if you need more opinions--I'm sure you'll get more as time narrows!!