Something that occurs to me, browsing City sets on Brickset: should we be listing Great Vehicles as a subtheme of City? It's one of the main categories LEGO uses to define their City lineup since at least 2012 (even on their products page
), but currently the database sorts them into various subthemes according to their subject matter like "Traffic", "Medical", "Harbour", "Construction", etc.
Also, I notice that LEGO has a lot of more specific names for their City subthemes on their website than Brickset uses. The 2017 sets we have listed as "Jungle" are listed on LEGO.com as "Jungle Explorers", the 2017 sets we have listed as "Fire" are listed as "Fire Brigade" (though they were listed as just "Fire" when they came out so that one might not need to change), and the 2018 Mining sets we have listed as "Mining" are listed as "Mining Experts".
Looking at past versions of the LEGO City website on Archive.org, the 2015 sets we have listed as "Construction" were listed as "Demolition", and the 2016 sets we have listed as Prison Island were listed as "Prison Island Police". It may seem a little odd to break up existing subthemes like Mining or Construction into separate groups by their year of release, but ultimately I don't feel it's that different from how we already break Police into Swamp Police, Forest Police, etc. Or for that matter, how we break Space Police into Space Police I, II, and III.
Finally, City has since at least 2013 had a "Town" subtheme… but like Great Vehicles, Brickset doesn't seem to acknowledge it. Some Town sets over the years have included #60023
, and #60169
I understand that it can be useful to sort sets according to what kind of jobs or groups they're associated with, but couldn't this be better achieved using tags than by ignoring the official subthemes?