In message , at 16:34:43 on Sat, 7 May
2016, D A Stocks remarked:

There is still quite a lot of work to be completed at London Bridge and
Bermondsey before the new services can run because there isn't capacity
south of the river to run a full service north of the river - the
trains need somewhere to come from and go to. AIUI this work is
proceeding to schedule but won't be complete until 2018.

http://www.thameslinkprogramme.co.uk...ervice-changes

Is it still "early 2016" (perhaps May 15th is, officially)?

"The first new trains start to run on the Thameslink route from
early 2016."

There are a fair number of trains sitting in the sidings at Three
Bridges, and they sometimes venture out on to the main line.

In passenger service?
--
Roland Perry