I like Cities Skylines but it did fall short in some areas in my opinion. The management side of the game was really weak, especially if you never used mods. Things like crime and healthcare just felt like after thoughts in the game to be honest, you place a couple of police stations and forget the problem existed.
As much as SimCity 2013 was hated, it did have a few excellent ideas in that game that I absolutely loved. The city specializations were a dream come true for me. Starting off as a mining town, exhausting the resources and then using the wealth to make a tourism hot spot was fantastic. It helped a city tell a story in some ways. Being able to customise the public services (police, education, healthcare etc) was a great idea as it felt like managing those services was more than just plopping a building down and forgetting about it. You also had to manage what services were appropriate for the area you were placing them in. I loved that placing utilities had consequences for both the city and the wider region with air pollution, water pollution, and the water table etc all being things you had to be mindful of.
The problem with Cities Skylines for me is it feels more like a city painter than a classic city management game that SimCity was. Don't get me wrong, I'm not saying SimCity is perfect, I acknowledge it was far from being perfect, it had a lot of flaws some which have effectively ended the series but then Skylines for me is far from perfect for similar reasons. I'd love Frontier to tackle a City game (cannot see it happening mind, it's just fun to dream [praise]) as I think a marriage of the good stuff from SimCity and Cities Skylines would make for an absolutely fantastic game that indeed could take the genre forward! I can only imagine what a city builder with the specializations/management of SimCity and the scale and mod-ability of Skylines would be like. I'd never need to leave my house again if such a game came into existence hehe [up]
Still, if Frontier want a suggestions for a game, Then *Drum Roll* Planet Medical! A modern take on Theme Hospital would go down rather well at my table! [haha]