A ban on wearing a signature will be added, equal to at least 2 years minus however long you were banned.
Nice catch, but I hope you understand that you are going to have to work more replying to all the people who appeal 
This is not a bad idea, but I wonder if new unban second chance is going to be applied only for plagiarism cases or for anything else, let's say if someone was talking about ''things'' that are not allowed in forum anymore?
I'm guessing most of those who take this offer won't last a year before they find themselves banned again -- they are cheaters at heart and can't help themselves.
I think you are right about this, but there are probably few exceptions from this rule.Most genuine users banned by mistake ae probably gone forever, but I could be wrong.