"I haven't really thought about it," he said. "I've always said if I'm fit and playing well enough to play in the team then I'll do it. There are no thoughts of retirement at this stage. The body feels great."
The presence of Fien's wise old head is a major plus for a Kiwis side that is without around 14 front-line regulars through injury and unavailability.
Fien will always be a figure of controversy after the 2006 grannygate affair, however his loyalty to the Kiwis shirt can certainly never be questioned. Since qualifying on residency grounds he has always been available for selection, even after relocating to Australia to join the Dragons in 2009.
That Fien is still occasionally dogged by his premature start for the Kiwis seems a rather thankless reward for his efforts. However, with Rangi Chase choosing to play for England and six-test Fijiian Akuila Uate switching to Australia on "compassionate grounds" (ie, he could earn more money, which his family needs), the issue of eligibility isn't just going to go away.
Fien found that out on the morning of last year's final when a Queensland newspaper ran a story with the legendary Tommy Raudonikis questioning how somebody raised in Mt Isa could play for the Kiwis.
Fien responded by scoring the winning try but he admits the continued focus on his eligibility irks him.
"Look, it probably does but I try not to worry about it,' he said. "At the end of the day I've opted to play for New Zealand and never once have I swayed or thought 'I've made the wrong decision here'. I feel so at home in this group of players. They have been so welcoming since day one.
"After that game it was pretty satisfying, scoring the winning try, but more being part of achieving what we did again. Everyone has their personal reasons and their own stories. It has just made me who I am. Never once have I doubted my decision to play for New Zealand.
"That stuff happens, you've just got to get on with it. I've played some of my best footy in the black jersey."