IAU has made a technical definition that might be used by astronomers, but it's not going to have much of an effect on the general public, except perhaps for the status of Pluto. For example most people are not going to be convinced that an earth type body that doesn't orbit the sun is not a planet. And I don't think they'd be convinced that if the earth somehow stopped orbiting the sun that it would no longer be a planet. After all, just because you take a fish out of the water doesn't mean it stops being a fish, does it?