HM will be down to remove the overlay, but IASWH will still be going -- definitely ride that, especially at night! Take your time to walk through DL -- soak in what you remember and what looks different. Chances are you'll see lots of things that look somewhat different, and yet sort of familiar, too. Do you like the Starbucks "You Are Here" mugs? If so, make sure to pick up one for DL and DCA when you visit the parks. There is a Starbucks in each park now (Market House in DL; Fiddler, Fifer, & the Practical on BVS in DCA) and the specific park YAH mugs are cute souvenirs.