Ohh definitely I believe Varanasi Jn will overtake Gorakhpur Jn in few years, with the amount of Vande Bharats getting launch to serve Varanasi Jn, soon Vande Bharat Sleeper will start reaching Varanasi too, so future is bright for Varanasi Jn.
Yes Ndls-Bsb Vande Bharat will become India's first 20 coach VB, I hope they give it to 22435/36, since it runs much more packed than 22415/16