Having just read the announcement of the Dance with Dragons 42 card "expansion" for the boardgame, I was happy to see that FFG plans to make this set available as a Print on Demand expansion a few months after the Days of Ice and Fire event. I don't see them changing their policy about event exclusives being made available in the future, but I am glad they decided to make this set available to anyone who can't attend the event.

What is there policy on it?

I always assumed they didn't do it before because of a cost benefits equation - but with PoD they might as well make all future event exclusives PoD as well.

I really don't think many if any people choose to attend or not attend a board game weekend event based on a few freebies.