Unfortunately, all the banks are under pressure to deleverage i.e. reduce their mortgage book as quickly as possible.
So no one would be interested in taking them on.
It's not just non-arrears , it would also be loan to value. Most loans which are on SVR have probably been taken out in the last few years, so are likely to be in deep negative equity.
What might work is if PTSB transferred their cheap trackers to AIB. This makes no difference to the government as they are the shareholder in both. AIB might not like it though. The overall advantage would be that the PTSB loan book would be lower and would be more profitable. They could then charge more reasonable rates and build back their brand.
Brendan