Check this out.
I believe this side-by-side comparison should help guide the prep work for the new exam. Looks like much of the old content will remain in some form or fashion. I have not been able to locate any worthwhile study guides. The audiology-specific Praxis study guides for purchase on Amazon get very bad reviews. Could you post any websites or study guides that you are using to prepare for the Nov 12 test? I am going to keep looking but to this point I'm not finding a lot out there to help!