The 20-year-old, who spent last season on loan at Ligue 1 side Lorient, has found first-team opportunities at the Emirates Stadium hard to come by this term.
"I said to myself that I will have some chances to play when I returned to Arsenal this summer, so I decided to stay with this team," he told France Football. "I played not badly at the beginning, even in the big matches but with the returns of the main players of the team, I have disappeared a little.
"People always say to me that I'm still young, that there is time, but I played a whole season in Lorient, and today, I almost don't play at all. Return to nothing, it's annoying.
"Considering my time of play, it's sure that the idea of a departure this winter is in my head."
The Gunners, who are currently seventh in the Premier League table, travel to Norwich City after the international break.