On the back hatch? I have been told that is a very common spot for rust on the Rogue. I suspect you will have your rust touched up, and then you will have more and more appear the older your vehicle gets.
I have not read/heard of any other major rust spots. The only other issue that seems to affect a lot of people is the door sill, which chips and rust then occurs. If you search on the forum you'll see some reading material on it and various solutions from people. My preferred is 3M, but I know it's a little more expensive that other solutions.