The striker is on-loan at Los Che from PSG.
"Any player likes to be at the best clubs and play in the best competitions," the winger's father told RTP. "At Valencia, Goncalo just needs to play in the Champions League and there's a good feeling about that.
"He loves the city and the club, maybe he can stay another year. The performances are still good and we hope they will go even further.
"At this moment I think it will be difficult to go back to Paris, because they have more evolved players and my son is still in his development phase."