They aren't doing Super Stars this year. It is being filmed this weekend when they are in Vail. I heard during Blackpool that there are seven couples in the Latin this year, and also Carmen said that this is her last year there, so this should be one to remember!
Max and Beata and Ricardo and Yulia are definitely doing it as they told my friend in Blackpool. Sergey and Melia are definitely doing it as they told me they were, as did Bryan and Carmen.
I think Michael and Joanna are obviously going to be there and that Peter and Kristina are also pretty sure to be.
I don't know who a seventh couple would be if that is true, but I would suspect Michael and Hidemi are likely as I'm sure they would love for a Japanese couple to do it. Also back in 2005 they asked Michael and Tebogo before they even danced any competitions.
Or perhaps as said before it could be Franco and Oxana. I for one would really enjoy to watch their show, if so!