Also, Ryuna is a mage-type that is more suited to the "back row". She's definitely not a hard physical attacker that certain members of the Dragon Clan have been known to become. Which means that Nina, who will inevitably be in the game (we can see the sound files, so there's no reason to deny it), should not be the mage-type that she's been previously.
Is the next demo going to introduce us to the acclaimed Princess of Windia? Will she be well-balanced in physical and magical attacking? Only time will tell.
Or Lusty can spoil us. :p