Newcastle has only lost once this season, but Newcastle have drawn more games this season so they still have to be in third place in the standings, which means that Newcastle is also a strong team this season.
On top of that, Newcastle has only 11 goals conceded out of the last 17 games, the lowest goal conceded so far in EPL. That means they are not messing around with their defensive line. Arsenal is the best top two team in EPL on goal scoring with Newcastle is the best in defending so yeah its most likely going to be a stalemate