What happens to my team if I downgrade?

Team logins beyond what the new plan includes lose access when the downgrade takes effect, starting with the most recently added; the earliest-added people are kept. Free and Starter are just you, Pro is you plus 4. Their logins are saved for 90 days, and upgrading in that time gives them access again. After 90 days, those logins are removed and you'd invite them again.