As things stand...
Man City and Villa would qualify for next season's Europa League.
If Liverpool or Fulham were to win this season's Europa League, they would qualify.
If Portsmouth's licence appeal was to be dismissed, Liverpool would qualify.
If Portsmouth's licence appeal was to succeed, Portsmouth would qualify.
If Portsmouth's licence appeal was to be dismissed and Liverpool were to win this season's competition, Liverpool and Everton would qualify.
If Portsmouth's licence appeal was to be dismissed and Fulham were to win this season's competition, Fulham and Liverpool would qualify.
If England were to retain their status in the top three of UEFA's Fair Play League and anybody but Fulham win this season's Europa League, Fulham would qualify.
If England were to retain their status in the top three of UEFA's Fair Play League and Fulham win this season's Europa League, Burnley would qualify.
That is the situation with how qualification stands for English Clubs; given the Barclays Premier League table as of 18:00 on 18/04/2010, and with the standings in the most recent publications of the UEFA and English Fair Play Leagues, published in December 2009 and March 2010 respectively.