The Verge reports that:
Apple is set to introduce the iPhone 15 in the next few weeks, and the device’s long-rumored transition from Lightning to USB-C may provide a boost to its charging speed. According to 9to5Mac, some of the new iPhone 15 models will support charging up to 35W, compared to the 27W speeds that the current iPhone 14 Pro is limited to.
This is a welcome news, any improvements to changing speed is great for end users. I am very impressed already with iPhone 14 Pro Max ability for fast charging.