Well, Ric Birch and Marco Ballich (who partnered for Torino) have been signed to head Ceremonies. Of course, they will also partner with local talents but because of their experience, they have been chosen to produce 2016.
@Danny, when you invite people to your home, do you do so in order to shame them and belittle them?
No; you invite people to your house...normally...because you want their company and you want to show off your home and be a good and hospitable host in the process. This is the reason cities and countries vie for hosting the Olympic Games -- so that that one moment of universal brotherhood, every four years, can be celebrated in one's house. The sports are really secondary; the main thing is coming together for camaraderie and friendly competition -- FRIENDLY being the operative word. Also, they will come your way about once in a lifetime. That's what makes the Olympic Games unique.
So how about making it a unique experience by welcoming ALL the nations and teams, regardless of where they're from, showing them that Brazil is an exemplary host, rising above all PETTY behavior which can be exhibited at all other tournaments but this one? Otherwise, the host does NOT deserve the honor and should NEVER have bid in the first place.