After your subscription expires, the license doesn't cover you to use or publish the assets in new projects. This includes projects like intros and outros, which can't be used or published in new videos without an active subscription.
However, when you use a valid license to create and publish a project, you can keep that project in the same media and monetize it forever, even after your subscription ends.
To create and publish new projects, re-subscribe to an active plan.
Learn more about our plans here:
Which plan do I need? All of our subscription plans explained