For now, Chelsea and Aston Villa's strength will not be able to become champions, there are still leading candidates Man City, Arsenal and Liverpool whose strengths are considered equal so far.
Chelsea still has to improve their defense which is currently still fragile, as well as their attack line, I think it is still not sharp enough.
On the other hand, Aston Villa under Unai Emery this season will make it difficult for their opponents, but the trophy will still be difficult to pursue.
I will not expect too much from Chelsea and Aston Villa. However, if they want to pursue 4th position at the end of the standings, they can achieve it.
Right, at least it will take time for Chelsea to win the Premier League trophy again. either in the hands of Maresca, or another coach who might replace him next season. besides, it is not certain that Chelsea will finish in the top four of this competition. there are still many matches that must be played by Maresca's team, if they want to finish in the top four of the Premier League standings they must be able to improve their performance and be consistent. so is Aston Villa, it is not yet time for them to reach the top of the Premier League. in other words, winning the League trophy. although nothing is impossible in football, either Chelsea or Aston Villa might have the opportunity to reach the top of the standings until the end of this season. but at least, these two teams can be an obstacle for the more favored teams.