The Ballads of the Great War will be repeated on BBC Radio 2 in 2018.

Announced so far;
Wednesday 17 October Radio 2 9pm 1/5 1914
Wednesday 24 October Radio 2 9pm 2/5 1915
Wednesday 31 October Radio 2 9pm 3/5 1916
And I assume;
Wednesday 07 October Radio 2 9pm 4/5 1917

Friday 09 November Radio 2 19:50
The Ballads of the Great War - Live Join the author Michael Morpurgo and the BBC Philharmonic in this very special event to mark 100 years since the end of the First World War.

I don't know whether the above is an additional programme, or whether 5/5 1918 will follow on Sunday 11 November Radio 2 9pm.