Taken from today's EDD announcement:

"In the event your items arrive after the end of the date range shown to your buyer, as long as tracking shows you dispatched your items on time and used both the service and carrier you specified on your listing, you’ll be protected against late delivery defects."

Is eBay going to be taking into account that there may be reasons that this may not be possible, and at times as a seller, we have to use different carriers or services to deliver an order? Such as some carriers may not cover a delivery address, the order is for multiple items and is too large for the carrier shown in the listing. Or in our case, we use multiple carriers that collect at different times during the day, if an order has come in after one carrier's collection time we may use another carrier that is still to collect later that day.