Dane believes Whincup could be part of a gradual passing of the off-track baton within the championship.
"Jamie and I have been talking for a year or two about what he thought he'd like to do, and still thinks he'd like to do post-driving," Dane said.
"He's a motorsport person through and through, and he feels that his ambitions rest in team ownership.
"I've, for many years, been conscious of the need to have not only a succession plan at Triple Eight but succession plan within the pitlane in Supercars in general.
"We need a new generation of team owners coming through, of which I hope Jamie is going to be a part down the road."
Dane's Triple Eight entered Supercars in September 2003, and is one of six teams still on the grid 15 years on.
Brad Jones Racing and Garry Rogers Motorsport are the only others that have not changed names or majority ownership, while what's now DJR Team Penske, Tickford Racing and Walkinshaw Andretti United are effectively intact.
Whincup joins Dane and daughter Jessica, Tim Miles and Paul Dumbrell as equity partners in the factory Holden squad.