In addition to space gray / black, sure. Instead of, naaaah.
Me, I want a red metal one like iPod Nano and the Mac Pro. Apple starts making red metal stuff beyond the Project Red releases, I'd be all over that.
I picked up a rose gold 6s as the space gray and silver models I bought had issues.
I like having the option of a space gray / black because it is easier on the eyes (for reading from the screen etc.) and a neutral dark color. Besides, I cannot see Apple getting rid of their 'little black dress' if they want to continue to pretend they are a fashion accessory company rather than tech.