Navistar International Corp. executives have agreed to meet with Fort Wayne (Ind.) Mayor Tom Henry to discuss the future of the Navistar Truck Design and Technology Center, according to the Fort Wayne News-Sentinel.

However, a meeting date has not been set, said Michael Joyner, a spokesman for the mayor.

Navistar is taking steps to relocate its headquarters from Warrenville, Ill., to Lisle, Ill. The move is not finalized, but Lisle officials say the company has said more than half of the 3,500 jobs that would be at the new headquarters would be moved from locations outside the immediate area.

Since last summer, local economic-development officials have known that the more than 1,000 well-paying jobs at the Fort Wayne design center  are at risk if Navistar moves its headquarters.

Two weeks ago, Henry wrote to Navistar CEO Daniel Ustian, seeking an opportunity to plead Fort Wayne’s case as a home for the design center. Henry’s letter promises a package of incentives – no details disclosed – to help persuade the Navistar chief to keep the design center here.

“The mayor wants Navistar and its great employees to remain here for generations to come. He will continue to do everything he can to make that happen,” Joyner said in an e-mail Tuesday.