As per my view, the stations which will may be a long-distance trains terminals stations are:-
1. DDJ(having long distance pfs) 2. DKAE, 3. BRP(IR can make pf#4 more longer as lands are available, though running of long-distance trains are not possible as its not located on proper Kolkata, but, IR can introduce some Passenger/Intercity trains eg: BRP-Nabadwip Dham, BRP-MLDT Pass, BRP-RPH Pass).