I'll go direct to the point, all the iTunes skins on my gallery will NOT be updated.
I know, is sad.
The main reason for this decision is that iTunes interface changed a lot. Some things are smaller, others are bigger, etc. I would have a lot of work adapting all of them to the new look.
I will make new skins for it of course, but I'm not sure if will be possible to create something like Silent Night, since I haven't found a way to change some of iTunes colors. Also, changing a single color can affect different places, so there might be a conflict of colors in a dark skin.
Don't expect any release soon though, I'm working