This report appeared online yesterday and promises:
Leading experts discuss policy solutions for the year’s pressing CE issues.
It is a slim volume, with 68 pgs and Tony Blair adds an introduction cited in part:
The central case of The Tony Blair Institute for Global Change is that we will not defeat the violence unless we also defeat the ideas behind it.
Link to download:
The volume is edited by Professor Bruce Hoffman, whose introduction is IMHO a good read.
Link to that introduction:
There are two SME I know, having read or heard them: Jamie Bartlett and Sir John Jenkins. Anyway I have yet to read all the contributions.

Now whether there are 'new approaches' is a moot point. More engagement, more places just may be.