If I had the money to spare, I would create a southern sim, but not just one city. I've always thought it would be remarkable to have a sim that had parts of several cities - things they were well known for, then recruit people to rp each unique area, allowing for travel between the different parts of the sim, including using storytelling for conflict storylines. (For example, the slave houses of Ar, the silver mines of Argentum, the scribe tower of Ko-ro-ba. (just tossing those out as examples)
While I appreciate and understand why people build such massive sims, with every part of the city included, it's been my experience over the past three years of roleplay that most of the space goes unused. There are a couple of places where people congregate, and the rest tends to be empty.
I think of Port Kar under Dyce and Syndel. It was a fantastic build, and each house became its own 'village', so to speak. The Rencer Island was barely occupied, though it had so much potential. It was a good concept, in general, and it could be done again, instead of one southern city, a combination of the best and most notable features of each city.
Just random thoughts, not sure if it could even work. I do recall when there was the continent. anyone here who was part of that? Why didn't it succeed?
And that should probably be a whole other thread, yes?