User blog comment:Aphrodite Sweetheart/Official Winx Club WOW and 4th movie discussion blog/@comment-30933630-20160204084611

The transformation for the 4th movie will most likely be Butterflix. We saw they released the cgi Butterflix pictures and let's think about it a little. From the first movie they released cgi casuals and Enchantix, then they released Believix and Gown pictures from the 4th movie, then they released fairy-school and sirenix cgi pictures. Why didnt they release Mythix? Because it wont be featured in any movie that's why. They only release cgi images of outfits present in movies. So, the next movie will feature Butterflix most likely.