Found this out at http://winxclubepisodios.blogspot.com/. This is a poster advertising for the Licensing Int. Expo 201o. Apparently, it's going to be Las Vegas this year.
Click on the image and read it for yourself. There's already a comic series by RAI for the pixies just like there is one for the Winx Club so maybe their pixie counterparts will get the same. It's kinda creepy how they're making a cartoon for them now.