Find a new "home". It's difficult to move on and not an easy search - I spent a solid five months of wandering the vast array of Free to Play titles and reading reviews of Subscription based games. I tried Lord of the Rings, Star Wars, Fallen Earth, Champions, Neverwinter, Star Trek...
Star Trek reminded me enough of the City that that is where I am staying. It's not about finding an exact match - nothing can ever replace the City - but it does help to have a "refuge". What that refuge is...only you can say.