Barclay's 2015 book on grace, Paul and the Gift, has been gathering momentum as a push back against the New Perspectives' (alleged) minimisation of the radical nature of Paul's view of God's grace. There is a nice interview in CT about it, which also presses him to apply (albeit too briefly) his view of grace to churches today:
That’s why some of the most exciting churches today are not necessarily the big ones, but rather the small, multicultural, urban churches where you discover that different ethnicities and languages don’t count before God. Our education, our age, our job, the kind of music we listen to, the books we read—these do not ultimately define us. What defines us is who we are in Christ. We all are on the same level together and are therefore able to form countercultural relationships despite our differences. And that opens up the possibility for hugely creative Christian communities.