5YFV Delivery Plan published April 2017
I came across two interesting blogs (here and here) which themselves look at a big meta-analysis in 2014 on how peer support works in practice, and a 244pp NHS NIHR paper also in 2014 addressing a number of peer support projects across the country; the summary conclusions are attached. Overall, maybe warm (or even luke-warm) to the idea, with more research and evaluation work needed. A lot of observations of the potential problems and difficulties.
Also similar more recent review in the US (Jan 2017), although the full article is behind a pay-wall. The abstract includes : Mixed and limited intervention effects were reported for most health outcomes. The most promising interventions were self-management and peer-navigator interventions.
Finally, I found a web page (including a video) on how Cambridgeshire and Peterborough were implementing things over the last 5-7 years. Also a 2-pager from RAND (attached); maybe they are quite a bit further advanced than TEWV.