Rumours have cropped up indicating the subthemes that may appear from the LEGO City motif in 2018.
Message boards may make most the LEGO City next year up. The three subthemes titles are Great Vehicles, Mining and Mountain Police.
It Wouldn't be the first time that the Mining has been seen by LEGO City Subtheme, as it featured many different mining vehicles that are yellowish . Different approaches have been taken by the Police subtheme with Swamp Police both taking the law enforcers to settings and Forest Police .
Great Vehicles refers to the #17.99 array of City vehicles which covers a wide assortment of 'everyday life' vehicles.
All rumours should be treated as such until confirmed by the LEGO Group.