Effects of a Spanish canada?

What would be the effect of an Argentine-Chile part of the Spanish empire?

After the independence of the rest of Spanish America what would this region be like?

Would this affect South America as SPECIALLY IN BRAZIL?

Would Brazil have rivaled this region or would they reach an advice on the silver and Uruguayan region?

Could they be allies against a provalent war against the rest of Spanish America?

Would we still have Spanish republics?

Spanish-American war still happening?

Relations with brazil, united states, europe and rest of latin america

What would be the probable name of a unified Argentina-Chile being part of the Spanish empire?

Could we have Falkland Islands part of the Spanish empire?