The Schalke star has less than six months remaining on his deal at the club and has attracted interest from across Europe.
Liverpool, Bayern Munich, Barcelona and Real Madrid have all been linked with a move for the playmaker.
Marca and Sport Bild have previously stated Goretzka has decided to join fellow Bundesliga side Bayern.
However, Schalke sporting executive Christian Heidel has continuously stressed this is not the case.
And he has now announced Goretzka's future will be decided soon.
Five men Liverpool could replace Philippe Coutinho with

“Schalke cannot offer any more nor do any more than we already have”
Christian Heidel
"It will not be long before a decision is announced, and it will not drag out until the end of January," he told Funke Mediengruppe.
"Schalke cannot offer any more nor do any more than we already have.
"Leon wanted to wait and see how Schalke's sporting development went. It's been six months.
Getty
Getty
"We are in the best possible position in the league table behind Bayern and have reached the DFB Pokal quarterfinals."
The Instagram video featured Klopp celebrating a Liverpool goal at Anfield last year.