The 33 year-old split with wife Yvonne earlier this year amid claims he had cheated on her.
However, it seems they have now put the past behind them and are planning a new life in Australia, where Ronan has been judging The X Factor.
A friend said to UK newspaper Daily Record: 'They're looking at relocating to Australia. It's a better quality of life for the children and better for the family all round.
'Ronan still has work commitments in the UK next year and will keep to those, but he shares Yvonne's view that Australia is a good move for them.'
A spokesman for the star said: 'It's something they're looking at.'