Rangers boss Stuart McCall says he feels sorry for Gael Bigirimana, but admits he should never have been signed.
Chris Gunter will stay at Reading, after the club took up the option to extend his deal by another year.
The 19-year-old joined Everton on a one-year loan deal from Barca last summer and has scored twice in 15 Barclays Premier League appearances.
Although he has enjoyed his time at Goodison Park, he is making plans to run out at the Nou Camp on a regular basis from the autumn.
"I am working hard with the aim of returning to Barca next season," Deulofeu told Catalunya Radio. "I want to earn a place in Barca's attacking line.
"I accepted the challenge (at Everton) last summer and I am happy with my decision. Now I am more mature as a person and as a player.
"Perhaps there was a lack of confidence in me (at Barcelona), but that is normal as I was young and it's difficult to find coaches that trust young players."