The Brazilian fractured his back during the World Cup quarter-final victory over Colombia and sat out the losses to Germany and Netherlands in the semi-final and third-place play-off.
However, he is hoping to return to Barcelona for pre-season on August 5 before featuring in the annual Gamper game at Camp Nou.
"Im slowly recovering from the injury. I'll get to Barcelona 100 per cent," he told reporters at a promotional event in Brazil.
"I want to have a good season and I'm looking forward to helping my team-mates get good results. I also want to contribute to the Brazil team.
"I'm confident of playing in the Gamper game on August 18."
Neymar has since arrived in Japan to continue his recovery and work on personal commerical requirements.
The Brazil international signed autographs for dozens of fans after his arrival in Tokyo prior to the press conference where his latest commercial venture was confirmed.