2013 SimCity Online?
The recently announced SimCity, scheduled for a 2013 release, will require players to maintain connectivity to the internet. Maxis have announced that given the games online aspect and the use of player-influenced economies, the game can really only work if everyone is online.
EA have also confirmed that although you will be able to purchase the game through various retail channels, you will need to play it through EA's Origin platform.
Although the announcement of a new SimCity game has caused quite a frenzy, as yet very little information is actually known about it. We'd expect more information to be drip feed as the year progresses.