Kicker reported that Hoffenheim have an interest in retaining the 20-year-old beyond the loan period but view the current option price as above what they believe the player's contribution warrants.
Whether Borussia Dortmund would accept a reduced fee is unclear — the club included the option at that level with the expectation it would either be exercised in full or they would retain the player.
Campbell spent just 74 minutes on the pitch for Hoffenheim's Bundesliga first team, with two further appearances for their third-division reserve side. His output was limited and no goal contributions were recorded. Despite the minimal impact, Hoffenheim's coaching and development staff remain convinced by his underlying quality and are understood to believe the performances on loan do not represent his true ceiling.
The right winger joined Dortmund from Icelandic club Breiðablik four years ago and has made only seven brief first-team appearances at the Westfalenstadion. He represents the United States at under-20 level and is regarded as one of the more technically accomplished American attackers in the European youth pathway.
Dortmund are under no pressure to sell but are open to it, given Campbell holds no clear path to the Dortmund first team. His contract runs until 2028, which gives the club leverage but also means carrying a player with no immediate senior development route for two further years if a deal is not struck.