Yes, once you have completed all your payments, you will have access to the membership site indefinitely. You can go back to reference any materials at any time there, so there's no need to download everything now. Everything is super organized, and you can use the site’s search function to find anything you want.
You will also keep your access to the club’s Facebook group indefinitely and can continue using it as a resource to support you in productivity. We will NOT be adding new cohorts to the current group, so your Facebook community will consist entirely of graduates beginning in 2018 when the January 2017 cohort graduates.