At least three Premier League teams have interest in Nketiah and leaving Arsenal next year will be the most likely outcome.
The Daily Mail reported that Nketiah could still leave Arsenal, even completing his transfer as early as next month.
The 22-year-old's contract expires next summer and foreign clubs could negotiate with him on a free transfer in January. Borussia Mönchengladbach and several French clubs were allegedly interested in him.
But there are also teams within the Premier League that have taken an interest in him. Crystal Palace, West Ham and Brighton are all listed by the Daily Mail as Nketiah's suitors.
Earlier this week, after Nketiah completed his hat-trick, Arteta spoke about Arsenal's intention to keep the player behind.
"We're doing everything we can to do this," Arteta said. "Obviously, his contract is about to expire, you can't control that and we've been negotiating with Nketiah for a long time."
'I repeat, his real intention is to play more games, that's what motivates him to make decisions about his future and you have to respect that.'
'Obviously, he's a player we love and want to stay and we're going to do everything we can to keep him because we want him to be part of our programme and the club.'
Sky Sports recently reported that Nketiah had turned down another contract from Arsenal.
The young shooter's decision was not driven by money, but by a lack of first-team opportunities.
The Athletic confirmed the news, adding that Arsenal offered Nketija a contract extension on Tuesday (7 December), which he declined on Wednesday.
The same report also suggested that several teams were interested in him, with Borussia Moncheng being mentioned again, as well as Nice in Ligue 1 and clubs from Italy.
The good news is that if he joins the Premier League club, Arsenal can at least get some form of compensation, even if he leaves in the summer window as a free agent.
Transfers between young academy players between English clubs are subject to certain compensation, and if their contract expires, the amount of compensation is determined by the arbitral body, which cannot be decided privately between the two clubs.
Following recent transfer rumours with Arsenal, Jonathan David's agent called the season the player's last in Lille.
In a recent podcast video, David's agent, Nick Mavromaras, told Radio Canada that the player would finish the current season in Lille but would leave later.
"For us, the goal is to finish the season in Lille, but for many reasons it will be his last season here," Mavromaras said. 'I think the Premier League is a great option for him and he loves La Liga.
"These two major leagues are his first choice, but others may not be ruled out."
"You never know what kind of moves Paris Saint-Germain or Italy's big clubs will do. It's normal for these big clubs to be interested in Ligue 1's top scorers, but I can tell you that there is no official offer yet. ”
Both the Evening Standard and The Goal Network have reported that Arsenal are interested in David.