You've been (maybe not-so patiently) waiting for it, but it's finally here. Portal Games has posted up their big preview all about Detective: Season One. If you're wanting to know about this new set, this is the place to see it.
From the article:
We are proud to present the highly-expected premiere of the game Detective: Season 1. This is the most important title of this year from Portal Games, by Ignacy Trzewiczek, Marzena Nowak-Trzewiczek, and Weronika Spyra.
Season One is a fully standalone game from the Detective series, in which players work together to solve three mysterious crimes. Detective: Season 1 is a set of 3 separate cases that can be solved in any order. Each of the investigations is set in a different place and time, they do not form a campaign. The rules are more simplified than in the original game.