At Stratford they've started advertising the move of London Overground
to its new platforms upstairs (from January 2nd), and the most
surprising thing is they'll be numbered 1 and 2, the same as the old
platforms downstairs, rather than "12A" and "12B", as they were shown
on the original plans*.

So I'm guessing the platforms downstairs will reopen as 16 and 17,
giving a nice consecutive 13-14/15-16-17 with the Jubilee Line
platforms. On the other hand, the upstairs platforms will be
1/2-12-11/10A-10/9-8/6-5/3-3A-4B/4A (where / is an island). They can't
rationalise them either, as there will be 14 platforms** upstairs and
only numbers 1-12 available. Unless they renumber the Jubilee as
well...

U

* http://www.tfl.gov.uk/assets/downloa...orm-Layout.pdf
** well, 11 and 10A have no regular service, and 3A will be on the
same track as 3 (Central Line westbound)