Lucas has struggled for goals and form since returning to Depor at the start of this season and has admitted some regret over the move.
Agent Rodrigo Fernández Lovelle told COPE Coruna: "Maybe it was not the right step to return.
"He took a risk by returning, instead of choosing another Spanish team," continues Lovelle. "No one can imagine the situation of Deportivo, it is clear that no player can be happy."
Lucas has scored four goals in 26 games for Depor this season.