I personally don't think it really matters much due to how CN treats Pokemon in general. They never advertise it, it's just big name part of their morning block. Still, if nothing else they could just do what AG did on WBkids and preview the first couple of episodes. I doubt they'd give BW the GX/5D treatment but who really knows. The games will still sell because Pokemon games sell themselves and market themselves. HGSS sold itself well with it's commercial's on TV and with trailers on TVs in stores like Gamestop and Best Buy, so Pokemon games are safe. They will be sold. The anime is kinda on it's own on how they'll get the XY anime caught up with the USA.
Parena or Serecham both equal Serena+Pancham! Sereevee or Serevee equals Serena+Eevee!