I found this information on the craftsy.com FAQ page:
Q: What happens to my purchased Craftsy classes/patterns?
A: Those are still yours forever! Your classes and patterns will remain in your Class and Pattern Libraries, regardless of your Bluprint subscription status. We understand that a subscription isn’t for everybody, so you can still buy the specific classes you have your eye on, and you will always have access to the classes and patterns you’ve purchased. If you’re curious about Bluprint/Craftsy Unlimited, you can give it a try with a 7-day free trial!