Since moving to North London in 2010, Koscielny has established himself as the club's first-choice centre-back, with 301 appearances being made in all competitions.
Koscielny also penned a new contract earlier this year, but Fery has suggested that the French international is planning on another spell with Lorient by 2020.
Fery told Canal+ Sport: "He told me last week in London that he wanted to finish his career at Lorient. I hope he has a few more years playing at Arsenal."
During the 2009-10 campaign, Koscielny made 35 league appearances for Lorient, with his performances leading to Arsene Wenger paying £9.7m to take him to the Emirates Stadium.