The New Zealand international, who has made 104 appearances in five season in Gosford, is expected to receive a pay hike in what is thought to be a multi-year deal.
His career was derailed by a broken leg and dislocated shoulder back in 2016, but he's bounced back to be one of the Mariners' most consistent performers.
And it's understood that he will be released from the final year of his contract to head south to work under the wing of Victory coach Kevin Muscat next season.
Centre-back Thomas Deng has been playing out of position filling the void left by Geria's March departure for J2 JEF United.
But Muscat is seeking a specialist right-back and sees the attack-minded Roux, 25, as the answer to the conundrum.
Roux has 13 caps for the All Whites, and began his A-League career with Perth Glory.