The band have already completed both projects and will unveil the first collection in October. The second will follow 18 months later.
"Last year was the first time in 14 years that we didn't tour, and it's meant the new records don't sound like anything we've done before," singer Kelly Jones told the Daily Star.
"We've had time to just go into our own studio and mess about, and it's resulted in a bigger-sounding style, very grand and filmic."
The string sections on some of the new tracks are conducted by James Bond film composer David Arnold.
Jones is also planning collaborations with Labrinth and Tinie Tempah after meeting them at various festivals.
"I've been talking to Tinie about doing something together. We're up for it - it's just finding the time that's been a problem. Labrinth is a properly talented guy too. He's been saying he wants to work with me, and I'd love to.
"I didn't know these boys, but they've been coming up to me at festivals, saying how much they love Stereophonics. It's flattering."
Jones has written a film, on which some of the new Stereophonics tracks are based.
Speaking about the movie, he added: "It's about two kids from a small town who run away and end up in the middle of Europe. After that, it all goes a bit, well, you'll have to wait for the film."
Watch Stereophonics' video for 'Dakota' below: