Joining the new “Space Gray” iPhone 5s, the 32/64GB versions of the iPod touch, iPod nano, and iPod shuffle can now be ordered in new color as well. This might indicate that the iPod line won’t be seeing any update this season/year, since Apple is going through the effort to add the additional color.
The iPod touch sports a 4-inch Retina display, but it is still powered by the A5 chip (the A7 chip was just announced today for the iPhone 5s).