Brazil is a great option considering how different it is from all the other countries (culturally), considering that there are no South American countries currently represented, and considering how many people from Brazil already visit the park each year. The section would almost automatically lend itself to a mini Carnival style entertainment option. My biggest concern is how you represent the country architecturally. I mean (and no offense to anyone here who may be from Brazil or who has connections to Brazil), but I just can't picture what architectural style they would use that would be distinctly Brazilian. On top of that, probably the most recognizable icon of Brazil is the "Christ the Redeemer" statue in Rio
but would Disney recreate such a religious icon? (honestly, I don't know, I'm just asking... is there a precedent somewhere?)