If that's the only week you can go, I say go. But just go with the understanding that there will be crowds. THe hours should be extended by that time, so my best advise would be to get there first thing in the morning. Pick a different land to explore for the first few hours each day and head straight there. DL should open by 8 so for the first 2-3 hours it should be fairly ok. Then eat a nice lunch and head to DCA or the hotel to swim, take in the sights, rest, shop and have a nice dinner then head back to one of the parks later in the evening.
DCA is less crowded than DL so maybe spend the mornings at DL, afternoons at DCA.
THe GC is beautiful and has lots of nice features. Wander the grounds of the DLH also. They have a fountain show, koy pond, and places for photo ops.
Get to know the fast pass system before you go. Collect fast passes early in the day. Even if you miss the window of time, the CM's will still take them as long as they are the same day.
Stroll along and eat a icecream. People watch in DTD when it's crowded in the park.
I think if you do some planning of where to be at rope drop and don't mind getting up early, you can still have a wonderful time.
Get your tickets before you go. Standing in line outside DL is the worst punishment. LOL
