Tristan’s contract with West Ham expires June 30.
“This topic is back following my last few performances, but there are still two games to go and I do not want to comment,” he told Marca.
“It depends on what happens at West Ham ahead of next season and what my family decides. I have already received some offers, but I keep the ambition to return to enjoy my football in the Spanish league.
“My dream is to score 100 goals in La Liga. It would be something exceptional.”