Variable rate: 3.00% (discounted loyalty rate I believe)
Mortgage Balance: €159,081.05
Current LTV: 27%
Mortgage: €1356.19 pm
Remaining Term: 11yrs & 6 mths
If you could switch to Avant now, you would save 0.4% of €160k or €650 a year. So it would take about three years to recover the legal costs of switching.
So, switch to the 2.35% rate for 4 years
Then if BoI takes over, they can't slap you with higher rates for 4 years.
After 4 years you will owe about €100k with 7 years left.
You may well overpay your mortgage in the meantime.