Once railways start bypassing, it is going to become a trend. Look at Shoranur. Though a very small town , but because it was a junction , people coming in from Hyderabad, Vizag used to change trains here but these days except for Sabari there is no train coming from Ernakulam and going towards Palakkad that touches Shoranur . So, better to develop a satellite station because Vijayawada is way bigger than Shoranur. Gunadala is the best bet for this. Coming to trains and regarding VSKP CCT bound trains skipping BZA, yes I think demand to these places is a lot and they need dedicated trains. Godavari should be the first in the list to bypass BZA due to high demand.