I figured Tysons would be the theater for DC, it's probably the busiest one in the area. Technically it's in Virginia several miles from DC itself, but that just goes to show how Disney is thinking in terms of cities and not random locations.
It also makes sense to have it at a big mall location like that, since Disney is probably hoping to get a lot of the Black Friday crowd.
Have they specified when exactly the earliest showings with the trailer will be? I worked at the Lego store at Tysons off and on for several years (grew up just a couple miles from there) and had to work the Black Friday shift from midnight to 6 a.m. back in 2009. The mall is pretty busy from Thanksgiving night into the wee hours of the morning, but I don't know what kind of schedule the movie theater is on after 11 p.m. or so.