My idea, is to bring together the BML AND ECW. For those who own both, obviously a free update, for those who own one of each, they pay for the other to expand their current route. Or as a whole dlc for those who don't own any if it. As 313s are no longer in service to my belief, I would trade the 313 for the 700. If this is not possible then please do a timetable update on one or the other to consider each other's timetable and add route hopping at lewes for services going to London from lewes.
BML itself doesn't need expanding. At most it just needs scenery updates, Norwood Junction to be modelled and accessible, (you can see it when shunting at Selhurst Depot but nothing is actually there), and access to the Coulsdon Town branch that's literally next to the main line, as well as the 700 added.
I wasn’t around when the original Southeastern route became the version it is now, but whatever process that is, that would be the only way to achieve what OP has asked for. However, a remaster of the BML is absolutely due, with the Thameslink timetable and the opening-up of several visible, functional and modelled areas.
shredder you are absolutely correct that the OP is actually suggesting a full rebuild as opposed to a remaster. However, I am always happy to entertain any suggestion that might at very least finally give us the missing Wivelsfield branch which is another perfect example of missing mileage with no logical reason. This branch in particular needs adding to either BML or ECW, but should absolutely be done.
What I would like is an extension to london bridge, if not then remaster it with the Accessibility of More stations depots, etc
Yeah it is strange.. you’ve got the BML (sort-of) timetable in place on the ECW Brighton, so those services exist already, and all the Wivelsfield to Lewes stuff appears in game. Can’t be that it’s a timetable issue! Time issue however, yeah.. most likely!