The latest edition of the Alaska Airlines magazine features an ad for the Alaska Airlines Visa Signature card
It features an additional bonus of 2,500 Alaska Mileage Plan miles when signing up for the Alaska Airlines Visa Signature® card before June 1st. There is no extra code required.
I could not find this information online anywhere…
So this may or may not work for you if you apply before August 31st. If you are interested in the card you should give it a chance and use the picture above to convince the agent afterwards, but know that this may or may not work.
I've had the card multiple times and have been very happy with it. Ideally you should build up the points before the current best deal goes way – Cathay to Johannesburg in Business / First Class for 70,000 miles for the one-way!