I am not overly concerned by any i⁰f those.
I am sure there will be contracts showing that City weren't paying Mancini "off the books". Even if the cash was paid by City, that doesn't prove anything about who the services were provided to. And even if we were using AJ to pay part of Mancini's salary, there was no FFP, so there was no actual damage done, other than a technicality. It's really not a serious issue. It certainly doesn't stop the annual accounts giving a true and fair view for those worrying about that.
We have defended the sponsorship issues before, other than ADTA and Aabar, which were small. I am sure we can do so again. And again, the contracts are properly recorded in the annual accounts, the services were supplied and amounts settled in full. Not really anything that affects the true and fair view given by the annual accounts, even if ADUG settled them all directly on behalf of the sponsors as long as the underlying accounting was proper.
As for new evidence, I find it hard to believe there are smoking gun emails lying around that haven't been made public in the last four years. And even if there were, emails prove nothing other than discussions, maybe instructions. What actually happens in the accounting is the only important thing. And I doubt anyone apart from City and related parties have access to that. Occam's Razor tells me they don't have much.