The 18-year-old, who turns 19 on June 22, will join Villa on a free transfer after leaving Dutch side Feyenoord.
The Premier League outfit agreed a deal to sign the highly rated forward at the end of May but his deal will not officially go through before today's 7pm transfer deadline, for the shorter window ahead of the Club World Cup.
Instead, he will move to Villa once his contract with Feyenoord expires at the end of June, while the transfer window reopens slightly early on June 16.