The We Will Rock You band’s singer died in 1991 but left behind a number of vocal takes, some of which were used for 1995 album Made In Heaven.
Now guitarist Brian, 66, is keen to use the recordings for another album.
Brian told iHeart Radio: “We thought we’d exhausted everything that was around and could be worked on but since then a number of things have come to light from various sources that we’d just plain forgotten about, including stuff with Freddie and Michael Jackson.”
Following Freddie’s death bass player John Deacon retired but Brian and drummer Roger Taylor have kept the group’s name alive, continuing with vocalist Paul Rodgers under the name Queen + Paul Rodgers and also performing with Adam Lambert as vocalist.
However Brian says - "It’s important to carry on Mercury’s wonderful legacy."
“As well as being the perfect frontman he was the perfect catalyst to channel the band to the audience,” says Brian.
“He’s always very much in my mind and I’m proud of what we did together."