At the same time, Robinho has been his savior for quite some time in Dunga's early days as manager. Also he does seem to know how to extract the maximum out of Robinho & also the other unknown Brazilians who still ply their trade in the Brazilian league... So him playing for WC is an almost certainty. Once he played the world cup he has huge chances of returning to Spain!!
You are talking about pre-Citeh Robinho
Robinho is off color for a while now .. probably since he moved to Citeh i haven't seen a decent form from him
Dunga has balls , without form he won't think twice about benching Robinho contrary to those before him he has the balls to do unpopular decisions like excluding the entire Brazilian forward lines and even Dinho .
so your assumption that Robinho has a guaranteed spot is without basis .
as for returning to Spain you mean moving to Barca since apart from Real & Barca no one can afford his salary , i think his lazy character and constant whining is a turn off for Pep and if the Catalan press is true than your two Captains don't want him in the squad as well .
Robinho will go back to City or move to a new Sheikh club