On Thu, 23 May 2019 15:56:49 +0100, Ian Clifton wrote:
The “Live departures & arrivals” pages on nationalrail.co.uk seem to be
showing trains every 15 mins each way on the GOBLIN. TfL still says
“reduced service”, as far as I can see. Is it really happening?

Yes, the first Class 710 in passenger service left Gospel Oak at 11:36.

Pictures in several places including
https://www.londonreconnections.com/...enter-service/