This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Bottom line is that not much is known, and everyone has pretty much the same questions, and nobody has many answers. I think the new exam will be more difficult, so I'd suggest grabbing the current SCJP Cert before it gets retired. Again, when will the current one be retired? Well, nobody is really sure right now.