Deulofeu fell out of favour at Everton and was offloaded to AC Milan in January, where he scored four goals and provided three assists in 18 outings.
His form saw him earn a recall to the Spain squad for this month's friendly against Colombia and World Cup qualifier against Macedonia.
While Barcelona sporting director Robert Fernandez recently confirmed that the Catalan giants are keen to re-sign the 23-year-old winger.
Barca can reportedly re-sign Deulofeu before July 2017 under the terms of his £4.2m transfer to Goodison Park two years ago.
Barcelona target Gerard Deulofeu coy on future
Everton winger Gerard Deulofeu discusses future amid Barcelona link
But Deulofeu is unsure on where his future lies as he concentrates on international duty.
"Maybe sometimes I've thought too much in the future," Deulofeu said when asked about a potential Barca return.
"I'm living a very good moment in football and in the personal field, I'm calm.
"I have to think about the national team right now and then I have to choose the best option.
Everton winger Gerard Deulofeu focused on Spain duty Everton starting XI if only locals could play Tue, April 25, 2017
How would the Everton starting XI look if only locals could play? (Study carried out by Hopewiser)
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How would the Everton starting XI look made up only of local players?
"It will be a busy summer in my case but I'm calm and everything will work out for sure.
"I'm going through a good football and personal moment. Let me enjoy it, my future will be decided."
On Spain being heavy favourites for their Macedonia clash, he added: "It is what it is. We have to be professionals, we have to keep training.
"We are in the national team and we owe a performance. The three points are used for qualification and are worth the same as in any other match."