Wenger, 68, left the 'Gunners' at the end of last season after 22 years, in which he won three Premier League titles and seven FA Cups.
In an interview with 'Bild', Wenger revealed: "I believe that [I will] start again on January 1. I don't know [where] yet. I feel rested and am ready to work again.
"There are associations, national teams, it could be also [in] Japan." Wenger managed Japanese side Nagoya Grampus Eight before joining Arsenal in 1996.
"From my 22 years at Arsenal, I have big experience on different levels. There are enquiries from all over the world."
The Frenchman also remarked on the German national team and the retirement of Arsenal's Mesut Ozil from 'Die Mannschaft'.
"I believe that Germany needs Ozil. I hope that Joachim Low can convince him that he will come back.
"Ozil is a super football player, was not the worst in the World Cup. I did not love that he left the German national team.
"I love it when the players are as good as possible. He loses a bit if he does not play at an international level."