Elasticsearch behavior after License expiry

I understand that we can get going with elasticsearch using trial license for plugins. My question is what happens after the license has expired. For eg. if I use trial license for marvel and watcher and after one month, when the trial expires, will Elasticsearch have any issues or Will marvel and watcher just stop functioning?

According to https://www.elastic.co/guide/en/x-pack/current/license-expiration.html

"These error messages tell you when the license expires and what features will be disabled if you fail to update it. [example log output retracted for brevity] Once the license expires, calls to the cluster health, cluster stats, and index stats APIs fail with a security_exception and return a 401 HTTP status code."