Sources said Dhillon and Ilmi were nominated last month.
The five-member FCAT has Justice (retd) S K Mahajan as its chairman and its other members are journalist Shekhar Iyer and advocate Bina Gupta.
The two new members could be a part of the panel which would look into the issue of certification of the movie "Udta Punjab" if it comes before the Appellate Tribunal.
"The matter is currently in the Bombay High Court and whether FCAT hears issues related to the movie will depend on its order," a source said.
Filmmaker Anurag Kashyap had earlier lashed out at censor board chief Pahlaj Nihalani over the slew of changes that had been suggested by a revising committee to be made including deleting Punjab signboard in the drug-themed film.