A six episode anthology series in addition to a future season? Sign me up! I really liked this show and there is a lot of room in this world to explore different aspects that weren't covered in the show. I really, really hope at least one of the episodes is focused on Mizuki. Maybe she will finally land a guy!
Not sure about getting a new season. Seems like the project they announced back then is this six-episode movie. Judging from the Anime Corner article, these six episodes would be slice-of-life focused. Getting new season will depend on how the production team will use these six episodes to connect to a new storyline at the end. There are a lot of they can do with just existing characters/organizations as they didn't fully explain in the first season.
I was basing that off the translated tweet they have in the article from Chisato's VA:
The new work is in production! In the meantime, let’s enjoy the short movies
Implying they are two separate things. I guess it doesn't confirm it is a new season, but it is at least something separate from these 6 episodes (hopefully not something like a mobile game). Time will tell. I would love to see some more of the LilyBell organization and its history with Chisato.
I completely missed that part. AC article also confirms this movie is not what they announced back then. I also love to see a new season exploring more about Chisato organization.