Bids have been opened for the Link Light Rail extension to Northgate. This work involves digging twin tunnels from the UW station to just a little South of Northgate Mall.
More information is available here: http://www.soundtransit.org/Projects-and-Plans/Northgate-Link-Extension
This is great news. Northgate is already a major bus hub. The South light rail line already gets lots of use, especially during rush hour and special events. This should only add to the ridership.