From a marketing perspective, that's a terrible idea. Hate to say it, but a 'mature' Transformers series would only appeal to mostly adult TF fans, and although we seem like many on sites such as these it is still a very niche market. Almost everything has not just us in mind. Hell, even Masterpiece is aimed at collectors who collect multiple toylines, not just Transformers. Now, if an anime studio were to do it it could work. If it were to happen, I'd say Ufotable would be the best bet with how complex all the Transforming parts would be if you still wanted to keep it in 2D without going full Energon/Cybertron/Go! or something. Maybe Producton IG would work. Madhouse and Bones would have a chance of CGI Transformers though. Funny thing, this series is produced by Studio Polygon, the guys behind Knights of Sidonia.