Lookman, 20, had been tipped to establish himself in the Premier League for Everton and push on for a senior national team role under Gareth Southgate this season after an incredible loan spell in the Bundesliga last season.
After joining the Toffees from Charlton in a £11m deal, the tricky winger spent six months at RB Leipzig - where he scored five goals and registered four assists in seven starts.
With several appearances for the England U-19, 20 and 21 national teams, the player born to Nigerian parents, who scored three goals en route to the U20 World Cup triumph last year has made a surprise decision.
"An announcement will be made soon, I'm close to his management and they have confirmed that he has made the decision," a source confirmed with Nigerian news outlet Pulse, that Lookman has turned his back on England.
The Nigeria Football Federation have intensified their efforts to convince players of Nigerian descent to commit their international futures to the Super Eagles.
Benfica right-back Tyronne Ebuehi along with Premier League duo Alex Iwobi and Ola Aina have been some of the recent success stories in their new initiative led by head coach Gernot Rohr.
While Chelsea striker Tammy Abraham rejected the chance to represent the African giants after meeting with the NFF President Amaju Pinnick.