Call it whatever you want but SC 2013 is the evolution of the SC series, once we have contiguous city tiles, terraforming and larger city tiles, SC4 will become a relic just like that of SC2000 and 3000.
But sadly that will not be avaiable in the new game.
I have one message for all the people here saying that Sc4 is dull and boring. Simcity isn't a game made for you and Simtropolis isn't the place for people like you. Don't you all think that Simcity will be quick fun like games as Cod Black Ops 2, TES: Skyrim,... If you think that Simcity 4 is hard. You will encounter the same problems soon enough in simcity, why? because the people who think it's hard want too much right from the start and don't build up their town and then start big things. Ocean Quigly said it himself, you can build up a decent city in an hour and after that? Simcity 4 would take you days to build a city and you would enjoy it because with the dozens of mods and the large freedom. You could make the city you want. But back to what Ocean Quigley said, again an example of the demand to quick fun games started with games as Farmville etc. on Facebook. Sometimes a good game needs a little more time and effort to have a dozen times more fun then those quick fun games.
So i advise everybody who doesn't like Simcity. Please buy yourself Skyrim and all it's DLC's and go on rampage trough Skyrim to kick a bunch of dragons and other bastards. Or buy yourself Call Of Duty Black Ops 2 and go on rampage trough multiplayer. But please keep your opinions about something you guys don't know anything about yours.
I actually wonder how people like you would have talked about Simcity 4 if there wasn't any new Simcity coming up...