I think that should be okay -- the time between Wintertides will be handled as downtime, in pretty broadstrokes. If people *want* to coordinate working together and interacting during those seasons that's great, but if Aupti's are more standalone that's also fine.
I did not initially put a deadline on this, but since people are beginning to get finished characters in, how about Wednesday for a loose deadline?
I'll also go ahead and share the Discord link for questions/discussion as people finalize: https://discord.gg/JDpCru5p