Calendar events auto change to Dec 31, 2099

I would love to see a little feature added whereby an event will automatically set it's start date to Dec 31, 2099, no end date, no start or end time and no cut off date. That way when an event is over it automatically sets itself to "Date" To Be Confirmed, that way I don't have to do that every time an event ends and I don't yet have a new start date.

Maybe a small tick box on the event page to turn this on or off at will on an event by event basis.

Please and Thank you.