The Metro is coming and it's very exciting. Visit www.DullesMetro.com for specific details about each station and the progress of the project.
The Wiehle Avenue is the 5th stop in Phase 1 of the Metro Rail Expansion, which is to be completed by 2013. It's going to be quite the station with parking for nearly 2,300 cars.
Sign up for alerts here: http://www.dullesmetro.com/info/signup.cfm