Unfortunately, there's little anyone can do about that. Quite a few have already been disappointed for a long time. And to the average person, the longer disappointment lingers over something held dear, the more they cling to the tiniest slivers of hope. Its just the natural reaction.
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