I had a pretty good idea for a mod, but I'm awful when it comes to trying to figure out how mods work, and I was wondering what other people thought of this idea- and if they would be interested in turning it into a mod themselves? The idea I had was pretty standard, currently, your cities and administrative centres stay in the same style of the era that you built them in, which I don't particularly like. Instead, I'd much prefer if they updated along with everything else, meaning that they will update to every new era you pick. 

Just a mod I myself would love to see personally.