Good news..
as per /blog/post/2986356
here is the expected trains list getting E-loco.
12291/92 Overnight Exp
12191/92 Shridham Exp
12187/88...
more... Garibrath Exp
11464/65 Somnath Exp
12159/60 Amravati Exp
12061/62 Janshatabdi Exp
22187/88 Intersity Exp
12321/22 Imperial Mail
12295/96 Saghmitra Exp
12167/68 Varanasi Exp (LC Currently at PPI).
I think, the Loco Changing of 12791/92 at PPI will shift to JBP and Pune bound trains like Gyanganga, Darbhangha, GKP & Patna can easily run with e-locos between JBP and PUNE as entire route is electrified.