Not just that, but a more appropriate body style, a better tailored coat with proper buttons not glued on ones, real boots that allow for poseability and the once and for all definitive Johnny Depp Sparrow sculpt.
The HT Slim body works perfect for Jack in my opinion, I've got both my HT Sparrow figures on it.
To finally have the definitive Jack, the coat should be a charcoal grey, even though the real coat is made of various tones, that'd sum it up well, certainly not black like Medicom or chocolate like Hot Toys' original. The tailoring could be better too, tighter on the upper body and arms and bell out below the waist with the right ammount of folds in the back of it. As far as the buttons, after Marcus Wright, there's no reason they can't do them right for Jack, other than the details on them, Marcus' are about right in scale and style.
HT also needs to make a smaller shirt for him, even on the full size TT body he comes with, the sleeves are way to big on the old shirts.
Another thing that needs improvement over the previous ones is the size of this baldric, you can't make it sit as low on him as it does in the movies.
And of course the right sculpt with PERS is important.