The world 12 Brazil still exists. If you don't log on for a long time (around 2 years or slightly more) you are removed from the world.
The current system does not produce worlds for countries/languages but for 'regions' - Brazil would come under the Americas region. These are the Wrath worlds, which start at an appropriate time for those in that region.
No new players can see or start on many of the old worlds as they are closed to new entrants.
The next new world is Firestorm 17 which starts soon.
https://forums.ea.com/en/commandandconquer/discussion/274785/new-firestorm-17-world-starting-december-27th#latest
