I just enjoyed this very kind of trip with my friend. She has a degenerative disease in her knees so walking is out. We stayed at the Beach Club so with an
ECV it was easy access to Epcot and all of the Boardwalk. FUN!
We decided to concentrate on visiting restaurnats and lounges that we either had enjoyed previously, or that neither of us had experienced, so we used the parks as our destination, the attractions as secondary, to visit along the way. This was a new way for me to experience the parks!
We enjoyed entertainment in the WS when we were in Epcot, stopped for cocktails and snacks along the way.
DAK was a total surprise for us! We went to The Lion King show, and Its tough to be a bug (my DGD hates it so I never go when I am with famiy) The safari and then a late leisurely lunch at Tiffins. End up relaxing at Nomads lounge til the Tree wakes up. This was my favorite day. Tiffins is like an art gallery, and allows you to travel along with the Imagineers as they planned this magnificent park. Magical!
In the MK I would do as others have suggested. You could see if you can get an ADR to Skipper Canteen. Normally a meal is in between attractions, but we dined instead of "had dinner". WE were in BOG, but my DD and her family loved SC. It was an experience for them.
Or do a monorail crawl and explore the resorts. We did this for Christmas Decorations, but if they are removed when you go, so what? I would leave the MK and then travel teh monorail, stopping at each resort to explore, and relax. The Grand is amazing, with afternoon and evening entertainment. So many spots to relax and take it in.
The Boardwalk resorts offer so much for entertainment as well. My new favorite lounge is Abracadabar. Fun! The Boardwalk at night is beautiful, plenty to see and lovely just to stroll. You could head to the Swolphin too.
I would not plan this kind of trip often, but honestly I returned home to a workload that was crazy, and to completing CHristmas shopping and cooking, yet I was incredibly relaxed and stress free. Because we removed most of teh "must do" attractions that my family normally enjoyed, and we concentrated on just a few of those while we enjoyed all that was around us, the experience was so different.
WE never made it to DHS, but I would plan the same way.
Have fun!!!