In week 15, Luton will face Arsenal tonight, and in my opinion this will be an easy match for Arsenal to get 3 points even though they will play at Luton's home ground and will continue their victory.
However, after the match against Luton Arsenal have quite a tough schedule towards the end of the year. And they will face Aston Villa and Liverpool, two of the top four teams, as well as Brighton and West Ham United throughout December.
Arsenal should be able to win this game comfortably as the battle for the top of the league has intensified. Luton shouldn't be a team to cost Arsenal drop point today. I am backing Arsenal win this game and continue their impressive run. If Arsenal fail to win this game it will be detrimental to their chance of winning the league this season. Even if Arsenal will drop points it shouldn't be against Luton.