If you have Bridgeport, you can do this yourself:
I'm pretty sure most of us know of the easter egg of Twinbrook which allows you to view Bridgeport. Well, today while I was play EP3, I noticed something that complicates that factor. I noticed the same city in view of Bridgeport, but closer. So my idea is that Twinbrook views this unknown city and that Bridgeport is even farther away from Twinbrook than originally thought.
Now I have a question for you. What do you think that city it? SimCity, the capital perhaps?