will it unlock in 7 days?
No.
This is a
component of a comprehensive new set of recovery procedures which will be fully rolled out in the very near future (before the end of the year). This will allow recoveries to move forward at a reasonable pace again. But there is no immediate impact of this component to most people; I just needed to document it because the seclog entries are starting to appear.
If you are given an email address on the page which tells you that your account is locked, then it may have recently changed. If so, sending an email to the new address may expedite things.
Is it still just going to be via public key signing?
If not, Id there a way to opt for it to be for each account to make accounts much more secure, unless a large amount of develop,went is put into the new system as you mention social engineering, we might become a victim to that otherwise inless other factors are taken into account such as Mac addresses/iPs.