https://www.l-rumors.com
I am getting stronger evidence that Sigma will also launch new L-mount camera(s) in the near future. It is unclear if this camera will be APS-C or Full Frame and if they will keep using their Foveon sensor. But that guy on Dpreview forum probably nailed it 🙂
Note: I have no info if Sigma will unveil their camera plan at Photokina or if we will have to wait til early 2019. All I heard is that they will make L-mount cameras too.