I think it will help gameplay, the closer we can link our movements to the motions of the game, the more we will physically engage in the game. I loved the way we used movement in TP and not as much button use. The only thing I had problems with was the first time I went fishing, cause that was one of the movements that just wasn't intuitive (I mean, honestly to reel in ALL you needed to do was put the wii control vertical...? I kept mimicking pulling the fishing pole backwards, lol...) I ended up consulting the manual in the end, cause I just couldn't figure it out, lol. I think the new controls will make it easier to make the movements we *want* to make when playing both in puzzles and in battles.
I may not have discovered Zelda until the N64 versions, but I grew up playing NES and SNES games. I was in my teens when N64 was released. But as gaming has evolved, I've managed to adapt to the new ways of playing and I find I enjoy the new developments. I have a feeling I will enjoy Wii Motion Plus as well.