Newcastle winning their match or not will not affect Chelsea position in the table like the teams behind them. Newcastle have the same points with Chelsea but they have more goals which is the reason they are above Chelsea on the table. Chelsea should be more concerned about Aston villa and Nottingham forest because these two teams are the threat that will hinder Chelsea from qualifying for the champions League. For that prediction to come to pass, every teams in that list must win their next game and there won't be any changes to that list.
The question is "will Chelsea beat Nottingham forest?" That's a controversial question because Chelsea can not be rely on and likewise, Nottingham forest is not doing too well as well at the moment.
for that question there are indeed many answers that will be expressed, but I see their match between Chelsea and Nottingham Forest which in the past when they faced each other of course the number of goals entered by both of them was not much different, but from the predictions that I monitored maybe both will end in a draw, and ensure they enter the Champions League next season, and Chelsea is currently in 5th position in the standings and Nottingham Forest is 7th and both have ensured to strengthen their performance before the match.