Auburn class dates have been scheduled for this month. As per this thread, the next Parkour classes @ Hart's Gymnastics will be on Saturday, March 20th and 27th. The pertinent info is below, as well as in the forum thread.

Price: $17
Location: Hart's Gymnastics
4520 B St NW Suite C
Auburn, WA 98001
253.520.1973
http://hartsgymnastics.com/
Time: 5p to 7p

Don't forget regular classes and open gym times at Parkour Visions! Head over here for schedule and sign ups! Also, Parkour Visions is holding an obstacle course competition this Saturday, March 13th. The gym will be open from 12p to 10p, with the kids event running from 12p to 1:30p, the adults event running from 2p to 5p and a potluck and open gym for the remaining time. $15 for spectators and $25 for participants. Pre-register for the event here!

And the Tacoma classes being held at Crossfit Tacoma are still going strong 3 times a week. The schedule can be found at Parkour Visions or Crossfit Tacoma.