The Arsenal manager faced the latest in a spate of protests against his reign in Saturday's 3-1 defeat to West Brom.
Long before the full-time whistle, around half a dozen supporters held up banners calling for Wenger to leave.
But the Arsenal fanbase continues to be divided over the future of their manager of the last 20 years, with one plane flying with a banner calling for Wenger to leave as another later proclaimed "In Arsene We Trust".
Wenger had previously said that he had not made up his mind as to whether to sign the two-year contract on offer from the club.
But when asked whether announcing a decision could change the atmosphere, around the Emirates the 67-year-old revealed he had made up his mind.
"I don’t know," Wenger told Standard Sport. "Don’t worry. I know what I will do in my future. You will soon know. How soon? Very soon.
"You will see. Today I don’t worry about that. We are in a unique bad patch that we’ve never been in for 20 years. That is for me much more important than my future."
Asked whether he had told anyone else at the club his intentions he said: "I know what I’ll do. Have I told anyone else? No no no no."
He also denied the suggestion he would announce his decision in the next fortnight, in which Arsenal have no fixtures due to the international break.