Don't think of "coding" as writing javascript to make websites. Think of "coding" as "talking to computers".
As software eats the world, the value of people who can talk to computers will increase. Even if it takes fewer programmers to make a website, there will be more jobs for programmers to automate concept art production pipelines. You may not be writing javascript or python in fifteen years (I bet you will) but there will be code to tell the automation services what to do.
The interesting question is the general population becoming more tech savvy? Will this change in work encourage more students to learn how to code (whatever that looks like in twenty years)? Or will the demand for coders rise without a corresponding increase in supply?