"Tristán White" wrote
I don't suppose there's any way that the new scheme will mean that all the
trains that do this last stop of the route will end up at the same
platform, is there?

Of course not. The last reorganisation of the tracks and platforms at
Stratford was done with the specific purpose of allowing trains on the main
lines to call there. Before that, "all the trains that do this last stop of
the route", as you put it, did call at the same platform, while others
(including some that now stop) went past on a non-platform line.