The Spain midfielder has been linked with a number of Premier League clubs, including former side Arsenal, Manchester City and Manchester United.
And Mourinho says he does not know which English club Fabregas hopes to play his soccer for in 2014-15, though he is monitoring the situation closely.
"I think he is eager to leave Barcelona and very motivated by the idea of returning to England. I think that is pretty clear," he said at a Yahoo event in Belgium. "After that, whether he signs for us or someone else is not a question for today, tomorrow or before the World Cup. We are interested to see how the situation evolves."
Fabregas' Spain and Barcelona teammate Gerard Pique has said that the midfielder has told him he is set to depart Camp Nou this summer while Fernando Torres has encouraged him to move to Stamford Bridge.