In case you didn't notice (I didn't until today when I saw a bus on nextbus on the 25E)
http://wmata.com/about_metro/news/PressReleaseDetail.cfm?ReleaseID=5093
to be honest, it's basically the same as the 25C, except that it goes into the Parkfairfax neighborhood and goes all the way to Ballston
I have to wonder why the route doesn't serve Shirlington like the 25A does. That doesn't seem like a good idea; making old 25A riders transfer to a 10B or 23A at Parkfairfax just to get there.
On the flip side, I'm curious to see how popular the U2's new Saturday service will be.
I haven't seen any of the new schedules out yet. Even some of the routes on the site don't have the new schedules uploaded (including the U2).