Atlus USA just recently posted new videos on their Youtube channel demonstrating the special moves of the Persona 4 characters (with the exception of Teddie
because his voice wasn't ready for this).
The one that might be the most interesting to most is the Chie Satonaka one as it shows off her new voice:
It seems that most people are liking her new voice. I'm okay with it, as well. From some gameplay videos, it seems that Teddie's was more restrained and fitting than the high pitched squealing that was shown in the first tutorial video, but the final result remains to be seen as his move video isn't out yet.