Let's see kya hota hai. Maybe they might be thinking of extending Rupasi Bangla to somewhere like Bokaro that might give more passengers to justify the increase in AC coaches, or it would only be along with the wishes of IR to increase the AC coaches in all trains.

1 3AC, 2 AC CC, 3 NON AC cHair car coaches aur 5 GS coaches rahega mujhe lagta hai. Abhitak koi bhi new coaches toh dekha nehin mein. 1 week bacha hai dekhte hai

Till date i didn't spot any new lhb chair car coaches around SRC. Only spotted 1 old LHB AC Chair car coach in SRC CDO and few LHB GS coaches in SRC CDO. Only 3 days left for Rupasi Bangla lhbfication, i think another old and new GS coach rake will be given to Rupasi Bangla Exp jst like goven to HWH-DGHA Tamrolipto Exp, ROU-BBS Exp, TATA-DNR Supar exp.
1 non-ac chair car coach in Steel Exp is replaced by Antodaya coach.

most probably total rake will be made of 2nd class.
2 cc will be provided from the spares of ispat and barbil JS.. 2 lwscz will be provided from the spares also.. Let's see what happens

Yes i also think so because i have not seen any new lwscz or lwsczac coaches for rupasi bangla exp till today.