Hooded thieves had managed to nab the Bataclan work by cutting through the metal door of the club, a scene captured on video by surveillance cameras.
Last month, six people were arrested in France over the theft. Two were charged with robbery in an organised gang and the other four with receiving stolen goods.
Works by Banksy, now one of the world's most highly regarded contemporary artists, often shine a spotlight on social issues, such as migration or racism.
In recent weeks, he has posted on his Instagram account a drawing showing a lit candle setting fire to the American flag above a picture of a black man, in homage to George Floyd, the US man whose death in police custody ignited protests across the country.
He has also posted a drawing of people pulling down a statue, a reference to attacks on monuments or statues of historical figures linked to slavery or colonisation.