Course formats: Weekly format reversed
This is simply the Moodle default weeks format but listing the weeks in reverse order.
The first week will always be at the bottom and the current week will always be at the top.
Future weeks are completely hidden from students but will be "unlocked" as the date arrives. You should keep future weeks set as visible, as it uses Moodle visiblility settings for all "unlocked" (present and past) weeks.