No. The license grants you access to support & updates. When the license expires, you won't get access to ticket support, and you won't be able to get updates. But you will be able to use the previous versions.
Somebody higher up correct me if I'm wrong.
Hey, so is there a way with an addon to make some crons run more often? Right now for our site the cron for user group promotions runs 20 minutes after every hour. Is there a way we can make the cron run more frequently with an addon?