If AI-in-everything becomes as ubiquitous as the written word, which it will, our lives will be vastly transformed. The ability to code will become like the ability to write is now: the absolute bottom rung of the ladder to enter society as a participant.
If AI and energy become essentially zero cost then the differentiator will be how clearly you can tell them what you want them to build, and how useful are the things you choose to build. Oh, wait, so no different to coding today. So coding will always be important, and increasing saturation of advanced technology will only make it more so.
If you are assuming, as counter to these points, AI where you can essentially say: make me a FB clone that will make me 1 trillion dollars per year, finish it in 2 hours. As in, you have a Magic Lamp, then, either everyone will have a Magic Lamp, and the differentiator will be your mind, or only those who can afford it will have a Magic Lamp, so the differentiator will be money, equivalently again, your mind. So coding, in the purest sense of giving instructions, will be important.
To put all this another way, when the number of things to which people can give instructions to produce results increases in number then will also increase the number of people who are capable of giving instructions to such things.