Below is the speech given by William Hinman Director, Division of Corporation Finance SEC live at the yahoo finance all markets crypto summit a few minutes ago. Some very interesting comments made - particularly some discussion around how decentralization appears to play a role in a potential securities classification or not. Also, there was a fairly clear comment regarding the fact that neither Bitcoin or Ethereum could be reasonably classified as securities at this stage of their development
Eromyr (who is a lawyer, apparently) on The Zerpbox Discord made some interesting comments on this speech. He thinks that the SEC will not comment on XRP's security status because of the ongoing class-action lawsuit, otherwise they would be seen to be influencing the judge. He also thinks that the class-action will drag on for quite some time, possibly until 2020. We could be waiting a long time for clarity.