Yeah I agree with you, I think Arsenal will score at least 4 goals because throughout the first half Newcastle didn't do anything I can't believe Newcastle played that badly without a shot attempt, I didn't watch this match but I can check it based on match statistics. By the way, yeah Manchester City secured 3 points first so each team in the top 1-3 is only 1 point different meaning the race is still open whoever wins will continue the race.
It seemed that 4 goals could happen because throughout the first half Liverpool dominated the entire match by releasing 11 shots and 4 on target. Meanwhile, Newcastle didn't get a single shot on Liverpool's goal, and if Newcastle don't make changes I think they will concede again in the second half.
This is not a Liverpool vs Newcastle match. You need to correct it.