The 22-year-old was expected to become a first-team regular at the club but his progress has stalled and he is currently playing for Barcelona's B team.
"Next season is incredibly important to me," Dos Santos told reporters.
"I want to play more and more often. At the end of the season, I will sit down and see what's best for me."
Liverpool are rumoured to be considering a bid for the midfielder, according to The Metro.