According to reporter Hawkins, Barca had proposed to exchange Dembele with Neymar, but Paris Saint-Germain completely ignored it.
Dembele will not leave Barca in this winter window. Barca had indeed proposed exchanging Dembele for Neymar, or Icardi, but Paris Saint-Germain was clear and they completely ignored Barca's proposal to exchange Dembele for Neymar.
(Iron Fist)