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.
As far as I have understood, the new certification will be available in the beginning/middle of December, approximately 10-12 weeks after the closing of the beta exam.
I don't want to advice you on whether to choose the old or newer version of the certification, though - it depends on the reasons for taking the certification.
You may want to consider that SCBCD 5 seems to have been split into two certifications and thus if you want to cover the same topics, you may have to take two newer certifications.