There is little chance for Chelsea or Aston Villa to win the title because Arsenal, Man City and Liverpool are the biggest favorite teams until the tight competition from these three teams that have a big chance to win the title. With Chelsea in the top four, I think it is quite a good achievement because with their own performance improvement that can make them in a ranking that is at least quite profitable. Liverpool is the team that leads the standings and of course this is quite difficult for Arsenal and Man City to win the title, they have new rivals in fighting for the title because indeed with the previous season where Liverpool was quite far behind but now they are performing well to become the team that conceded the fewest goals. There is a chance for Liverpool to win the league title as long as they can maintain their performance well in terms of defense and attack.
Chelsea and Aston Villa are battling to stay in the top four of the table. Both these teams want to qualify for the Champions League. And Chelsea and Aston Villa are moving towards this goal. Last season we saw a very poor performance from Chelsea. However, the team won consistently in the last few matches of the season. So Chelsea was able to occupy the sixth place in the table until the end. And Chelsea's aim this season is to qualify for the Champions League.
All three teams are sure to fight for the title. Even in the last few seasons we have seen all three teams doing well in the Premier League. Liverpool, Manchester City and Arsenal all have strong squads. So this season the fight for the Premier League title will be more crowded.