Is Sigma Creating a New Trio of Bright Aperture Lenses?

Sigma Corporation has created a series of wide-aperture lenses over the years. While there are more options in the f1.4 range, such as the 23mm f1.4, the 50mm f1.4 DG, and the85mm f1.4, the number reduces a little with f1.2. However, it appears that the company is keen on expanding its range, as a new patent has recently been made public. How do they aim to achieve this? Let's have a quick look.