1.) The tentative TT if true is highly slacked at best. HWH-DHN is ridiculously slow. This is a true fact that during the ER heydays 12301 would cover up HWH-DHN in 2 and half hours. A self propelled MEMU prospect like a T18 trainset should in theory be able to replicate that time tables.
2.) BWN halt shouldn't be withdrawn IMO, it would provide a decent patronage as would DGR.
3.) Instead of PNME which can provide seasonal bursts of patronage at best, halts at KQR and DOS should be considered.
4.)...
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And DDU halt will have to be there. HWH/DHN Crew lobby would not be providing crew for BSB.
5.) Having said that the lion share of the patronage will be provided by HWH only. It is BSB bound and there has always been a historically huge demand for BSB from Kolkata region . Also there has been a demand of morning GAYA bound intercity from Kolkata that has sadly never been materialized sadly.
6.) For the sake of improved patronage from Kolkata side, the departure timings could be delayed a bit more.
7.) A 16 coach T18 train should be considered imho, this train will be an evergreen hit when introduced like it's PURI & NJP bound counterparts.
8.) If this train is successfully introduced then it will be providing a green signal for BSB bound prospects from TATA/RNC.