Because this is EA, they will mostly likely close down the servers after the final. I am of course just speculating, although it wouldn't surprise me. Gametrailers has a new trailer for EA's 2010 FIFA World Cup after the break and if you look closely, there's something dubious going on...
The game looks EXACTLY like FIFA 2010 with only the kits and name changes. This is how EA make a ton of money on World Cup year, by releasing the same game twice, then closing down the servers to encourage you to buy the game early or you lose out on online achievements. It's all a conspiracy I tell you.