Don't forget. It isn't the quantum of the adjustments they make that determines the FFP non-compliance, it's those adjustments pushing losses over 105 million. As far as I remember, City were well within that limit for 2014/15 through to the end of the PL investigation. I don't thnk adjustments for image rights will push us over the FFP "edge", as it were. The 30 million of Etisalat was for two years 1012 and 2013, before FFP as was Mancini as we know.
I am not sure what the transition rules were in 2014/15, the first FFP year, but we were well over the limit that year anyway, so there must have been some allowances as there were with UEFA, I guess.