Although the guy said it could take 12-13 months to receive the new card by mail, I figured it would be more like 12-13 weeks. However, it only took about a month.
By the way, for anyone in the Seattle area:
the BCIS office does not take walk-ins anymore, you must have an appointment or make one (reducing the line out to the street). Check their website, and/or call them to make an appointment. And, late this year (I believe), they will move to a new office in Tukwila near South Center Mall -- so, the Seattle BCIS will no longer be in Seattle.