What if?

What if the Americas hadn't been "discovered" by Columbus? Obviously, the world would be a different place today. And the distribution and populations speaking certain languages would be quite different as well. According to this article (in Spanish), Spanish would be just another European language, 27th on the list, between Polish and Ukrainian, instead of being spoken by ~10% of the world's population, if Isabella and Ferdinand hadn't sponsored his attempt to find an Atlantic/eastern route to the Far East.