If a license is about to expire without thoughts of renewing it, it would be common courtesy to let people know know 3 months in advance
1. For the viewers. On the drama’s page, so that people can rush to view it before it disappears.
2. For the CM and moderators so that the team can decide whether it's worth to continue working on it or not.
If 1 is not possible for some reason, at least implement 2.
In case there are thoughts of renewal, please say so. The team might stop temporarily until newer notice.