What i would really like to see in the action figure category would be really high wuality figures made by whatever company it was that made those really awesome 12" detailed, fully clothed figures based on the characters from Monty Python and the Holy Grail.
BUT, the figures would only be about six inches rather than twelve.
Link, for example, would be fully posable. as in, you can move almost every joint in his body. his legs can move and bend and all that, as can his arms, he can lean forward, tilt is head up and down, turn side to side, and all that.
Link's clothing would be mostly 100% cotton, like his tunic, and his white sleeves and pants would probably be cotton as well. actually, the pants could at least be elastic.
the chainmail shirt should be made from thin black or gray cotton with many, many, many little plastic ring-bead-things sewn onto it to give it the chainmail look.
Link's hat will also be purely cotton.
His swords (what we've seen so far, plus the Master Sword) will be hard plastic, not that rubbery bendable pseudo-plastic that the original Link figure came with. his sheaths (both, one for normal sword and one for the Master Sword) will be not only switchable, but functional as well, meaning we can actually put the sword in it's sheath. the belt and sash that hold the sheaths and keep Link's tunic in place will be most likely thin strips of real leather, or at least a flexible plastic.
the Shields will be like the Hylian Shield seen in
TP so far, and also probably what ever other shield comes after that one. they will be hard plastic as well, and will be held on Link's right arm PROPERLY (NOT like the shield from the original
OoT Link figure). there will be a plastic bar portruding from the left side of the back of the shield that you can slip onto Link's right hand, and on the other side of the shield's back will be a plastic or rubber binding to keep the shield from swinging away from Link's arm.
Link's hair will most likely probably be a rubbery bendable plastic type stuff, because hard plastic would look funny and barbie/ken doll style "hair" would look even worse.
Link's gauntlets will also be hard plastic, and a part of the molding for Link's arms and hands.
speaking of, Link's hands will be pre-molded into one permanent shape, such as Link's left hand will always be clenching so that he can hold a sword in his hand. the Right hand will also be clenched to hold the shield and other items that Link might come with.
That's basically a detailed example of the quality that i would like to see in an action figure set for Twilight Princess. i'm only detailing on Link because it'd take a long time to put into detail what i'd like to see in other characters.