Football Soccer - Cyprus v Belgium - 2018 World Cup Qualifying European Zone
Henry has recently been appointed as Roberto Martinez's assistant at Belgium and former teammate Pires says he is "very happy" for him as this will be a good opportunity for Henry to learn the job before stepping up.
Southampton manager Claude Puel with Thierry Henry before the match
The former Gunners midfielder is quoted as telling the Mirror : "I'm very happy for Thierry Henry because he wants to be a manager. When, I don't know but i think soon."
On whether this could be Arsenal, he replied: "Maybe one day, of course. Why not? Thierry Henry and Arsenal have a good relationship."
Wenger, 66, has recently celebrated the 20th anniversary of his arrival to the club but will be out of contract next summer.
Arsenal manager Arsene Wenger arrives before the match
The French duo were part of Arsenal's Invincibles side that went unbeaten for the entire 2003/04 season.
Henry also became Arsenal's all-time top goal scorer in the eight years he spent there.
Since retiring in 2014, Henry has completed his A licence coaching qualification while working with Arsenal's youth teams before focusing solely on his punditry role at Sky Sports.
This summer, he began coaching at Belgium, who are currently ranked second in the Fifa World rankings, and was hailed by players for having an immediate positive impact on the team.
The squad will host Bosnia and Herzegovina before heading to Gibraltar in the next stage of World Cup qualifiers.