Oh jeez I didn't even completely watch the video I linked myself. I did hear Snorlax have a slightly different cry when it bounced with happiness after being petted. This is cool! Pokemon can make different cries based on their mood (at least in Pokemon-Amie, anyway). The cry that we heard from Zoroark is after consuming a Pokefood-of-the-region. I'm going to assume that the sent-out battle cry will resemble more its original cry but less shrill and buzzy. I guess it's hard for us to call anymore until the games come out.