Got to speak to a couple of exprienced TTE's while traveling and got to hear that the train will soon be officially converted to a 24-25 coacher train looking at the heavy rush and PF capacity of both BCT and INDB.
They further said that WR will decide to add 1 or 2 sleeper class coaches permanently and also are planning to add either a 2A coach or a composite 2A+3A coach to this train.
I would say 1 sleeper extra and a composite 2A+3A will be good enough for this train.