A paper in Nature this week, Germline DNA Demethylation Dynamics and Imprint Erasure Through 5-Hydroxymethylcytosine, provides important details for how epigenetic information could be inherited.
From the ScienceDaily report:
"However, it is not yet clear what consequences, if any, epigenetic inheritance might have in humans. Further studies should give us a clearer understanding of the extent to which heritable traits can be derived from epigenetic inheritance, and not just from genes. That could have profound consequences for future generations."