Newcastle United is no longer as tough as last season against big teams, especially this season. I don't think Newcastle will threaten Liverpool much at the moment, unless Liverpool feel Newcastle is their biggest threat in maintaining their position at the top of the standings. Liverpool must be able to maintain its good performance if they don't want to lose their position at the top of the standings, otherwise Manchester City will be very ready to take over the standings and lead it.
Newcastle United don't have excellent and stable form like the past season but it is wrong to consider they are too much weaker than the past season. If Liverpool underestimate Newcastle United, they will have to pay very expensive cost. Newcastle United have enough good players to punish any defensive mistakes from Liverpool.
Liverpool is ahead in probability because they are playing at home, and moreover, Newcastle's performance is currently declining. Liverpool must not underestimate Newcastle in the slightest today, otherwise Liverpool must be prepared to lose points. Of course, this is the most interesting match at the beginning of 2024.
Liverpool are stronger and more stable than Newcastle United. Their recent performances show that Liverpool are stronger in the coming match but playing as an upper team contains risk. I hope Klopp will warn Liverpool players about this risk and motivate his players to do their jobs carefully in the match against Newcastle United. It will help Liverpool to avoid risk of losing the match and increase their chance to be the winner.