Howrah station comes under ER. SER only uses it. To decongest HWH and make path for adding new trains to HWH, ER and RB has already diverted many trains via Andul-Dankuni route which required LR at HWH. SER is developing SRC, SHM into Terminal to shift some trains from HWH to SHM or SRC. New trains of SER will be started from SRC, SHM Terminals maximum in future except Intercity type trains. SRC-TKPR 4th line connection to HWH New complex started, this will smooth the despatch smooth for SER thus HWH platform vacant soon after a trains completes its run and going to SRC CDO.
can't say but some train can also return back to HWH from SRC/SHM also in...
more... future.
Dankuni Terminal work started by ER. This will allow ER to start new trains from Dankuni. But will SER will also utilise Dankuni Terminal in future is under discussion. If so, then SER will divert some of its trains to Dankuni instead of HWH. Nothing final till now very preliminary stage now