I believe this would be beneficial for ToS as Brazilian players would be able to more easily play with others from their own country who speak their language and can relate to them culturally. As far as publisher choices I recommend Level Up Games.
The standard “region locking” of ips to prevent them from accessing the international servers that are in place for China, Japan, Indonesia, etc. should also be implemented.
This is beneficial for all parties involved and will improve the game for players both inside and outside of Brazil.
Edit: Due to overwhelming community demand, I am now also advocating for a publisher to be found for the Southeast Asia community as well. Lets work hard and get our friends in the east their own servers too!