The English actor - who has held Irish citizenship since 1993 - looks set to relocate to the US after his writer-and-director wife Rebecca Miller spoke of her desire to leave their current home in County Wicklow.
American-born Rebecca - who has two sons, seven-year-old Cashel and Ronan, 11, with Daniel - said: "I need, finally to be in the country I'm writing about. I do need, ultimately, to return. It's important to the boys. They spent the first few years of their lives in America - Ronan until he was six. He has a sense that he belongs there, in part. He would never get away with not going there because for him it is a big part of his life, for Cashel as well."
Despite her dream to move to the US, Rebecca - whose parents were playwright Arthur Miller and photographer Inge Moreth - insists she loves her current home.
She added: "I like it. It's wild where we live. There's a reason so many writers come from Ireland. There's something about the place that drives you into yourself. I've written a lot since I've been living there."
Living in a male household - which also includes Daniel's 14-year-old son Gabriel, from a previous relationship - inspires Rebecca's writing as she prefers writing for men over women.
She explained to Sunday Herald.com: "I love writing for men and about men. I think maybe it's because I'm surrounded by men. My whole house is male, even the cat. I've got a lot of men around me. The fact of having sons definitely gives me more of an understanding of the vulnerability of maleness."
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