No, not in that sense. Rather, is it possible for one of Spain's major American holdings - a country-sized region, or even a whole viceroyalty - to remain loyal to the Spanish Empire while all others break away during the revolutions of the early 19th century?* This could be brought about by a lack of enthusiasm for independence, or the victory of loyalist factions in the revolutionary wars, but is it possible to have a Spanish "dominion" somewhere in America existing alongside independent republics, and eventually forming an arrangement with Spain similar to the OTL UK-Canada one? Or would it even make it to that stage? How long could such a polity plausibly last?
*the OTL cases of Santo Domingo, Cuba, and Puerto Rico notwithstanding
*the OTL cases of Santo Domingo, Cuba, and Puerto Rico notwithstanding