According to the Russian Gymnastics Federation these gymnasts will compete among others (64 altogether):
Viktoria Komova, Anna Pavlova, Yulia Inshina, Anna Dementieva, Kristina Kruglikova, Maria Stepanova, Ksenia Afanasyeva, Ksenia Semenova, Kristina Goryunova, Tatiana Solovyeva, Aliya Mustafina, Anna Myzdrikova, Diana Sapronova, Anastasia Novikova, Maria Chibiskova (who won the Moscow Championships 2011), Anastasia Grishina, Ekaterina Kurbatova and Tatiana Nabieva.
Hopefully someone films during competition and uploads the routines on YouTube.
UPDATE: Results can be seen here. Apparently, Grishina, Mustafina, Afanasyeva, Semenova and Solovyeva did not compete.