The biggest thing a designer can do to add value now is help cross-functional people do more design work easily, and this is unlikely to cannibalize the designer.

the biggest thing you can do is to go in and to try and help cross-functional people do more design work easily. Like parts of the process. Enable your marketing team to create that blog image without needing you, right? Like create a design function that is enabling cross-functional partners. I truly don't think you're going to cannibalize yourself.