That's what On Frozen Blog would like to see.
I really doubt the USHL would ever expand that far east, but you never know. The USHL hasn't typically done well in Chicago or Columbus, so I'm not sure it would even work in D.C. I believe Gino Gasparini wants to eventually get to 18 teams in 3 divisions and with limited Midwestern cities looking available, I suppose it couldn't be ruled out have a team or two further east than Ohio.
I'd think an EJHL team would work better, or maybe an NAHL team since they already range from Alaska to Texas to Michigan.