Years ago Microsoft and Canon had a patent license agreement and collaborated on some projects [https://www.cnet.com/news/microsoft-and-canon-shake-on-a-patent-sharing-agreement/].
Years later Microsoft developed a small curved sensor that is sharper than a "50mm 1.2 on a 1ds3" on a camera phone. [https://mspoweruser.com/microsoft-researchers-create-new-curved-camera-sensor-sharper-commercial-camera]
It is possible that they are sharing patents and ideas with Canon.
Microsoft claimed that a curved sensor reduces the number of glass elements needed since it doesn't need to correct a curved image to a flat sensor. Less glass elements mean a sharper image. If canon makes a curved sensor and a new lens line that has fewer elements but is curved sensor only (so EF, EF-S, EF-M, EF-curved) that only works on these new bodies, they can make new lenses that are light, small, fewer glass elements, and sharp, with hopefully less variation from fewer elements. Could be a real breakthrough and allow much higher MP counts that can blow away anything we have now. Looking forward to it.