Gravity from symmetry breaking

Ingo Kirsch, a post-doc from Harvard, submitted an interesting paper on arXiv today. Goal is to get gravitational structure from almost nothing and symmetry breaking. He shows that a spacetime just made out of a manifold and a symmetry breaking Higgs field under certain potentials can give rise to a Riemann structure. In other words connection and the metric can be Goldstone modes of the theory. This work is a follow up and generalization of ghost condensation idea from the same (Arkani-Hamed) group.
I could not follow all the group theoretic ideas in the paper. I need more patience and to go back to the study desk for basics. However it reminds me the earlier work of Wilczek, where he gets the metric field out of symmetry breaking of a gauge structure and a preferred volume.