I would give the money to Nintendo and ask for a HD Zelda title.
Or imagine a competitive online battle simulator with the Skyward Sword controls, with an improved Wii remote (more precision). We really need a game with sword and bow/arrow battles like the current FPS games.
Also, several classes.
Archer, Warrior, Rough/Assassin.
Archer would have some really limited melee attacks and great raged capabilities.
Warrior would have great melee attacks, armor and blocking capabilities (imagine blocking an arrow with your Master Sword. Screams BADASS!)
And rough/assassin would have some great backstabing attacks, some mediocre ranged attacks (trowing knifes, shuriken...) and the best of all, a freaking grappling hook!!!
The game should be on the PC.
This will make it easier for the Archer and a bit easier for the rough.
But you would use the motion controls for the warrior class for better sword fighting.
I can already see some epic battles. 2 warrior fighting a sword battle. A rough uses his grappling hook to move fast behind one of them. As he is about to backstab his target, a precise arrow hits him in his arm preventing him from finishing his attack.
He jumps back, trows 3 shuriken at the archer. The archer trows him self to avoid them, but is till hit in the leg. The cunning rough uses that moment to aim his grappling hook at the top of a nearby house and runs away.
The at the same moment, 1 warrior decapitates his nemesis. He goes and helps his allied archer to stand up and move to the nearest camp to heal the wounds.