It's very difficult to say. If you look at what happened in the UK, when RBS got more or less taken over in 2009, they've let go over 10000 staff (including 20% of the workforce in Ulster Bank). Against that, the more staff that get laid off, the more the Govt has to pay out in social welfare payments.
With the government likely to take majority holdings in the two main banks and speculation that AIB executives may leave as a result, would this make cost-cutting and job cuts more, or less likely at the two main banks?