Competition for the top 4 rankings will continue to be fierce between Chelsea and Man City. And yes, because currently Chelsea is 1 point ahead, that means Man City itself cannot lose any more points. Because if Man City loses points again then all of that will only make Chelsea leave Man City even further and make Man City possibly lose more opportunities to overtake Chelsea. There are fewer games left this season. So just one mistake can be the deciding factor this season. Currently, Newcastle could even win the top 4 position if Newcastle manages to take advantage of the 1 postponed match they have. And if that happens, Man City will change positions with Newcastle, namely Man City could drop to 6th place.
The competition is for second to forth position, Liverpool is very likely retain number position this season because they are 12 points ahead of Arsenal. It won't be an easy thing now for Arsenal to make it to first position. For now the competition between Arsenal and Nottingham is getting tense for second position, as there is only 4 points gap between these two team. Arsenal next game is against Fulham while Nottingham will take on Manchester United in next encounter. Arsenal has habit of losing games at crucial stages, if they lose game against Fulham then they might not able to retain there second position this season.