What's Sukumar's next movie?

Now that Nannaku Prematho has become successful, the focus has shifted on director Sukumar's next movie. Who will be acting in his next movie? When will it commence? Which big hero will be acting in it?
 
Although there are rumors that either Ram Charan or Akhil will be acting in his next film, the director refutes the reports. He still stands with the news that he will take three months rest before starting his next. Sukumar also hinted that his next movie would be with music director Devi Sri Prasad as hero.

After the super success of Kumari 21 F, Sukumar's maiden production, producer Dil Raju announced a movie launching Devi Sri Prasad as hero in the direction of Sukumar. At that time, everyone assumed it was just a publicity gimmick. But Sukumar seems to be serious with this idea of launching Devi Sri Prasad as hero under his direction.