Maybe adding some street lights and a few rooms with the lights on could add a little to night maps. Lonovo as an example i think could benefit from it.
Car & train lights, fireplaces & oil barrels, TV & PC screens, cranes/radio towers, room lights in some appartments etc on maps set at night fall
I saw this https://www.reddit.com/r/BattleBitRemastered/s/Vy6jCgrEAk on reddit and thought it looked kinda cool, and it made me think why night maps maybe aren't as sought after from the players, and what could perhaps help them rise in popularity a bit.
I do know we are getting a new weather/daynight cycle system which looks freaking awesome.
I couldn't really come up with a good solution on how to make night maps better, other than giving them a bit of life and add a bit more visibility and "realism" - or at the very least, give even more options for more variation to the maps w. the new weather stuff