I hope Brazil returns to the old results, 17 medals to be exact. Chances for this exist, but should be between 14 or 15 medals.
Big Sports - Volleyball (Indoor/Beach), Judo, Football, Swimming... - 9/10 medals.
Traditional Sports - Athletics, Gymnastics, Boxing, Taekwondo - 1/2 medals
New Sports - Karate/Skateboard/Surfing - 3/6 medals
Canoeing - 1/2 medals (Probably 1)
I do not believe we can win a medal in a other sport, but there are chances in tennis, table tennis, cycling, slalom canoeing ...