Nikon Norway sent out an invitation for advanced Nikon school that also lists the Nikon D7100 camera:
"In this course we examine the camera functions and menu system and offers advice on how to utilize them best. Nikon School is a 4-hour course held in smaller groups of up to 10 people. Course leader will help you with settings and gives you advice on methods to suit your camera and your motives, whether you are amateur or professional photographer. Nikon School is for you with D5100, D7100, D5000, D3100 and D7000."
This is most probably a typo, but it's still interesting because the numbers 1 and 0 are not that close on the keyboard and the D3100 and D5100 models were already listed.
Thanks to everyone who sent that in.
Update: the D7100 entry is now removed from the website.