When will you be in DLP? When we were there last January I was very disappointed to find the shops closed up tight at the moment of park closing posted hour. In WDW, like you I enjoy that "extra" hour in the shops on the way back out on Main Street, but there was nothing like this at DLP - in fact there was not even anything to eat on Main street after the dot of closing!
It's true that the Village is open late, but for me that just isn't the same as shopping on Main Street...
That said, I think it may depend on when you are there. We were there at a time of lowest attendance, so I think they just didn't see it worth their while to stay open after the night parade. If you are there at high season, however, it might be different. Please let us know!