wrote

ISTR that the NLL services will be switched to terminate at the High
Level platforms when the route south of Stratford closes - numbers
12/13(?) - which will mean one less of the few stations with mainline
services on two levels.

Will the NLL use these platforms, or will they be used for Lea Valley
trains, with the NLL being provided with new platforms?

The changes mean that another station will lose National Rail services on
two levels - West Ham only got platforms on the NLL in, IIRC, the 1980s, and
c2c platforms more recently than that, and now the NLL platforms will, as
with Stratford LL, be transferred to DLR. However, along the NLL, Highbury &
Islington and Willesden Junction will retain a bilevel existence.

Peter