Google's John Mueller announced on Google+ that instead of the standard Google Hangouts he does where he just answers questions off a list or via prompts, he will be doing one-on-one sessions, with 8 webmasters, giving them 4 minutes each.
This happens at 10am EST this morning, you need to fill out this Google Doc and in the hangout within the first 10 minutes of it stating. about the 32 minutes of one-on-ones, John said he'd open the hangout to the public.
These will not be private sessions, the one-on-one sessions will be "public & recorded," John said.
Fill it out asap, it may be too late already but John said "We'll let you know before the hangout if we select your submission & depending on how things go, we might do this regularly."
Forum discussion at Google+.