It seems that M·A·C and Rihanna are getting together once more for another edition of the Viva Glam line.
As I’ve seen on specktra.net and according to its member erine1881, the Viva Glam Rihanna II shades are:
Viva Glam Rihanna II lipstick: warm mauvey silver (F)
Viva Glam Rihanna II lipglass: cool mauve with red frost.
Also, another member, rooocelle, posted a picture of the lipglass.
[the image is from Glamour magazine’s photoshoot for November 2013 issue]