Huh? I'm running Simcity 4 in 1920x1080 without any mods. Take a look at this: http://www.widescree.../wiki/SimCity_4
Technically, it's a hack - not native, and that is indeed the problem. What is worse is that Sim City 3000 DOES support 1920x1080 - and without requiring that hack. (I own both games, and both are playable in Windows 8.1 today.)
I have nothing against the older versions of Sim City - if I did, I wouldn't still play them. However, I'm not so emotionally tied to the older versions that I am unwilling to take on a different (and actually tougher) challenge as far as simulated-city management, as opposed to sticking to the same old thing.
That's right, would-be Mayors; despite my peeves about the unrealistically cheap cost of wind power, Simcity is HARDER from a city-management standpoint despite that. Taxation is a much larger factor in city management than it has been - and it makes sense in terms of realism - how many cities (globally - not just in the United States) have fallen to the woes of fiscal mismanagement? (CitiesXL is the closest any previous city simulaiton comes - however, even it doesn't give you as much detail as even Simcity's budget menu, let alone the rest of the data layers.)
And that is, I would guess, a major part of the lack of attraction of the new Simcity to the "old hands" - it IS harder, not ot mention being different. It's not honest escapism any more - it is too close to the real thing for a lot of the old hands to be comfortable with.