Currently, applications for File #4: Manhunt are open. Applications for the remaining scenarios will open at a later date.
Additionally, each scenario has a limited number of slots for each role in the party, as well as an overall participation limit. If you apply for a role/scenario that is already full, you will be asked to apply for a different role/scenario. You can view the number of slots remaining for each scenario on its respective forum post, linked above.
Make sure to check out our latest newsletter if you haven't yet! It has lots of information about our upcoming lore, among other things.