Lookman is on loan at the Bundesliga club until the end of the season and scored in the draw with Werder Bremen last weekend.
Leipzig sporting director Ralf Rangnick has been impressed with the Everton winger during his time in Germany and is keen for the club to turn the move into a long-term deal.
But Rangnick has confirmed there is no clause in Lookman’s deal with Leipzig which would allow them to buy the 20-year-old winger at the end of his loan.
“If it were down to us, I’d already know the answer,” sporting director Ralf Rangnick told kicker when asked whether Lookman would be at Leipzig next season,” Rangnick is quoted by ESPN.
“But it’s not only down to us. We have no clause in the contract.
“I think that we can only answer the question once the season’s finished. It also depends on what happens at Everton.”
Lookman has made seven appearances in the Bundesliga since joining on deadline day in January and has scored two goals.
“Mola has shown that he is more than just a desperate last-minute signing,” Rangnick said.
“How he played during the second half at Bremen, I really liked that. And not only because he scored that goal.”
Everton boss Sam Allardyce had been reluctant to allow Lookman to leave on loan but granted the England under-21 international his wish.
Allardyce had been keen for Lookman to go to Derby County but the youngster was set on a switch to Germany.