Um, Shane? Maybe you should lower your sights just a little...20 or so areas, 15+ songs, 35 NPCs, and 10 bosses or somewhere in that ballpark are more than enough for a good...whatever this is, and won't take a dedicated team and the rest of your life. :/
Also, the slightly large amount of elements you have means you either need 60 people dedicated with 1 element, combined element areas, or allowing people to use more than one. Or a combination of the last two.
At any rate, I'd rather wait until actual work has started to dedicate myself, but...may I have dibs on the Hope element? (As well as Emotion and Magic if you decide on the last idea, but consider Hope my choice if not.)
Of course, this is assuming you want to make the whole game out of elemental areas...because again, you have a ton of them.