Ahem... why are so many people assuming Pandora's Tower is an RPG anyway? That's just wishful thinking. Nintendo kept this game mostly a mystery (and a secret) for some reason. There isn't any evidence to point out what is the exact nature of the game, let alone the exact genre.
Besides, if you people want more RPGs for your Wii consoles, you should more likely complain to Nintendo about not releasing games such as The Last Story and Xenoblade westwards! There is also a third-party RPG that still needs to see the light: Dragon Quest X, which had been announced as a Wii-exclusive ever since 2008!