I do not think that Mooji will return to Tiruvannamalai. When he left in early 2012, I heard that he moved everything out of the hall he was using for satsang. Mooji satsang painting was also overpainted on the walls of the facility.
I see no mention on his website. On the site I do see mention of schedules in Ukraine, Portugal, and Spain. the schedule only goes through October, though.
If anyone knows otherwise, please let us know.