The 20-year-old, who scored 20 goals in 23 league games in Holland last season, has also attracted a host of Premier League interest, according to Per Jonsson.
"He liked his stay at Feyenoord and enjoyed putting in strong performances for them. Joining them again is definitely an option, but there are more possibilities," Jonsson told Voetbal International.
"We are going to explore all options without rushing and we will surely come to a decision before the transfer window ends at the end of the month. We will soon conduct talks with Manchester City and see what is best for John."
Blackburn Rovers have also been strongly linked with the Swedish striker.