Destination Wairarapa general manager David Hancock said it was one of the original ideas for the trail but it would require a new path to be created.
He said the trail had been developed from existing cycle routes like the Rimutaka Rail Trail and the Hutt River Trail.
"We connected the trails that already existed."
Hutt City Council visitor market development manager James Lamb said the extension was the next step, but formal discussions with private and public landowners had yet to take place.
"That's the long-term dream, absolutely. The magic of it is that it would be quite a unique ride in New Zealand, offering a river, a mountain, farmland and coast all in one ride."
He said they had been concentrating instead on developing the Ocean Beach to Orongorongo Station section of the trail and getting permission from private landowners to enable access.
Shortly after the cycle trail was launched by the Prime Minister in October 2013, the section, which was previously closed to the public, was opened.
"We focused our attention on that and getting that section open. We have invested a lot in that section and people call it the most stunning part of the ride."
He said formal discussions about the extension would begin this year.