They could be moving to a new generic name "iWhatever" where there are several subsections each represented with a colored circle and an icon inside. e.g. Blue Circle iTunes, iBooks is an orange circle with a book symbol, etc.

Imagine these icons running vertically down the side of the new "iWhatever" client similar to the way they made the "Maximize/Minimize/Close" buttons vertical in the latest rev.

This would actually be very similar to what Adobe did after it acquired Macromedia and faced the similar problem of having a jumble of apps that worked together, but lacked consistent branding and structure. They assigned everything a color and a "Periodic Table" naming convention which cohesively tied their products together.

http://www.thehighcontrast.com/family-tree/

Another similarity is that most designers hated that change, just as they did the new iTunes icon!