I think another element to a DC Metro area Disney resort would be selling it as a base for east coast historical tourism.
If Disney opens a resort, don't think for a minute that Adventures By Disney wouldn't be based there for their DC tour days.
Disney has had its eyes on the DC area for quite some time. The rumored American theme park ideas that circulated for the Northern Va area that got rejected is enough to know that the area warrants attention from the world's largest entertainment company.
Disney could build a very small but very high end resort on this site. And as I stated before - a full fledged DVC - Hotel - indoor water park would be an incredible draw for families looking for activities in the cold winter months.
DC is an incredible family vacation destination for any family that insists on quality education experiences mixed with their yearly family vacations.
I can imagine that Disney would even offer FULL DC experience guided tours and packages.
DC is a incredible to see, however it can be tricky to plan to see all that there is to see because there is SO MUCH to see.
Don't think for a minute that Disney wouldn't offer easier access to the Capitol, the White House, and other 'ticket only' sights/attractions.
I can easily see them offering an Adventures By Disney 3-5 day DC area tour package.
Disney's claim to 'fame' is the art and magic of story telling. DC has a story to tell - and I would trust Disney to bring that incredible story to life with live period costumed characters, period experiences, and truly magical encounters with historical figures both living and deceased.
So, in light of all of that - when (not if!) Disney develops this property, don't expect something ordinary. Expect something extraordinary and totally unique to the DC area!
From the monuments, to the landmarks, to the social and political movements, to the presidents, to the congress, to the Smithsonian - Disney can bring it all to life in 3 dimensions!
I'm excited - when can I book?!?!?! HAHAHAH

I'm not going to hold my breath until info comes out, but I am very hopeful for this development!