Chelsea's defense is weak and Chelsea's attack power is still less aggressive, that's what Chelsea is experiencing now, often the opponent steals goals from the weakness of his defense, so I'm not sure Chelsea will win even though it's at home.
The chances of victory remain equal but who will get the 3 points? When Newcatle dominates the game in the second half then it is not impossible that a goal will occur for Newcastle but depending on Chelsea's attack that should be when there is a chance to become a goal.
Chelsea managed to score an additional goal in the 57th minute, this might be the winning goal for Chelsea. Indeed, the goal scored by Newcastle players happens from a lack of coordination by Chelsea defense players, but in my opinion this is not a weakness in Chelsea defense. I'm sure Chelsea will be able to maintain the current score (at least). However, it is possible for Chelsea to create 1 more goal.