Now that we have access to the entire genome directly, instead of relying on twin and adoption studies, we are going to get many more of these insights. And it's not all going to be comfortable. There will be cries of biological essentialism, while the blank slate idea is no longer one that can be held by an educated rational person.
On more controversial lines, see this http://www.biorxiv.org/content/early/2017/09/06/184853.1 study (N=280,000) that correlates specific genes with IQ.