The Catalans have reportedly insisted on an option to purchase their player back should he flourish in England.
The Blues have already agreed a £3 million deal for the winger, who struggled for game time while on loan with Europa League winners Sevilla last season but flourished at Goodison Park previously.
It is believed he will sign a four-year deal with Roberto Martinez’s side, who will also have an option for a further year should they wish.
However, while the signing will be considered a coup for the Toffees, the caveat of a buy-back option could come as a negative to Everton.
The agreed upon deal will reportedly mean Barcelona can buy him back for €9 million, around £6.5 million, at the end of next season, while they would have to pay €12million, around £8.6million, in 2017 should they decide to wait until then.
While that is a slight negative, it is not an unexpected move from the Catalans who have done a similar thing in the past.
One plus point for the Blues will be the fact they would make a healthy profit on the player should Barcelona want to bring him back at some point in the next two years.
For the meantime however, Everton have secured a bright young star for an impressive price, and that cannot be ignored.