Vallavan [Actor Simbu's directorial debut] has music by Yuan Shankar Raja not A.R.Rahman.
But Mani Rathnam's next movie (documentary) 'Kural' has music by A.R.Rahman.
S.J.Suryah is planing another movie with Vijay it will have music by A.R.Rahman
K.S.Ravikumar said 100% that he is going to direct Rajnikanths next film. I think it will have music by A.R.Rahman.