First of all, you will get the same redress as everyone else. Your mortgage balance will be written down by €35,400 and you will get interest on that, which will amount to about €12k. I would be very surprised if AIB tried to argue that the €12k should be set against the arrears.
But how much arrears were you in?
If AIB had offered you a tracker at the then prevailing rate, would you have been in arrears?
If you can successfully argue that AIB pushed you into arrears through overcharging you, then you should be looking for far more compensation.
However, in most arrears cases, people who lost their job made very few payments, so it wouldn't have mattered what the interest rate was. They would still have been in arrears.
Brendan