Hey John,
Once the subscription gets cancelled/suspended the site will go into disabled status so users will not be able to access the portal
My suggestion would be to download recordings in bulk prior to the expiration date
There is an API from developer @ Webex that can help you downloading the recordings in bulk, please see article below:
https://help.webex.com/en-us/article/WBX61501/Can-I-Download-My-Recordings-All-at-One-Time-Rather-than-Individually?
This API below will include the recordingID and the download links to programmatically download site recordings (with Postman or your preferred software)
https://developer.webex.com/docs/api/v1/recordings/list-recordings-for-an-admin-or-compliance-officer
For additional questions on API usage, please go to Dev Support https://developer.webex.com/support
In addition, you can ask end users to download their recordings of interest from their Webex site prior to expiration date.
Hope you find this information useful