On 14 May, 16:40, Matthew Dickinson
wrote:
TfL plan to extend Oyster Pay As You Go acceptance to Shenfield &
Cheshunt when the Greater Anglia franchise is renewed.

See page 7 ofhttp://www.tfl.gov.uk/assets/downloads/corporate/Item08-LR-MD-Report-...

Shenfield fits in well with Crossrail, but the Hertford East branch
would be an annoying omission if FCC acceptance eventually extends to
its inner suburban boundary at Hertford North.

It would be nice if Oyster were extended to all stations within the
perimeter bounded by Amersham and the "London" Airports in the sticks
- Gatwick, Luton and Stansted. But I'm probably thinking decades into
the future!