Mata helped Spain triumph at the 2010 World Cup and 2012 European Championships, but the attacker has not represented his country since November 2016.
The 30-year-old has admitted that he was "disappointed" to be left out of the squad for the 2018 World Cup, and is now hopeful of earning a recall under new head coach Enrique.
"I was disappointed not to go [to the World Cup]. But then after that, I was hoping for them to win," Mata told ESPN.
"Now, things have changed. We have a new manager again, Luis Enrique. I'm again excited about the possibility of coming back. I obviously want to come back and try to play as many games as I can with the national team.
"I'm really excited about it and I think the future, it can be still bright for Spain, because we have young players coming that, as I said, they have the level to compete.
"We have some senior players that we have been there for some years and we have the experience so I think it's a good mix and hopefully it can be a good future for Spanish football."
Spain will begin their UEFA Nations League campaign against England on September 8.