Firstly your suggestion should contain as much information as possible for the assistance of those not entirely familiar to the train or route being suggested. Secondly, there is a rumoured leak that the Class 700/0 (8 car) is soon coming for SEHS, but I do stress that this is currently a rumour and has NOT been announced. The Class 700/1 (12 car) for BML is not included within this rumour. Let's see what is said on roadmap streams over the next couple of months.
The class 700 Would need more and 2 route To run on I would like like to Stretch the 700 let's Including Chatham mainline please Thank you