Should I add new episodes to the existing season, to a new season, or as a new series?

Sequels series (i.e. a direct continuation of the story) are added within the same entry. When the episodes numbers are continuous, all episodes are added to the same season. When the episode count is restarted (i.e. the first episode is Episode 1), the new episodes are added as a new season.

https://www.themoviedb.org/bible/tv/59f743289251416e71000037#5b71c6b4c3a3684161000001