Dont make Lucknow ICE part of your train extension propaganda. Jhansi to Gorakhpur Overnight train would work better.
Jhansi-Gorakhpur Mail(now known as Gwalior Barauni Mail) used to cater the needs but ab demand zada hai aur trains kam, doubling bhi pata nahi kab puri hogi. Already Reverse ICE ki demand hai iss route pe.