I think they would make the WC team earn it. Game 1 and 2 could be a double header. Season ends on a Wednesday, WC DH on Thursday, final WC on Friday, first NLDS games on Sat, then WC winning teams play Sunday. Don't really even need a DH, could make them play right out of the season 3 straight games. No rest, that's what you get when you don't win the division.
Might as well just cancel the wild card.
I wonder how many people would be calling for these measures if the Nats had ended up as a WC team.