Well Arsene says that we'll know 'very soon' which one assumes means in the international break.
I'm going to have to disagree with you and suggest that he'll sign a two year extension and walk away in 2019.
Thing is, He specifically said He wouldn't be announcing anything during the international break. This leads me to believe He's staying. No panic, no urgency; business as usual for the foreseeable future, imo.
"Plenty of strikers can score goals," he said, gesturing to the famous old stands casting shadows around us.
"But a lot have found it difficult wearing the number 9 shirt for The Arsenal."