What if the escalation prediction expired, but the user opens a link to it from an email or Gainsight timeline?

When an actionable email, message, or event is sent out from the Alert, triggered for likely to escalate activity, the link to start the Escalation Review will be available in the body of the message. 

If the user clicks this link after the escalation prediction has expired, the message on the SupportHub page will indicate to them about the prediction expiration.

Resources:

[LTE] Actions possible from 'Likely To Escalate' alert email