Time honestly doesn't matter much. Its not definitive proof that hinders any probability of a character appearing. And before someone says the kids don't know them, neither do kids know any character until they are introduced.
Originally Posted by CyberCubed
I am the current leader of Save Our Voice Actors, a Pokemon fan group supporting the voice actors in the anime dubbed by 4Kids (seasons 1-8). Our goal is to provide The Pokemon Company international with encouraging feedback in support of returning the main cast members. If you're interested, please visit us at facebook.com/saveourvoiceactors