give it another 10 years and software writing ai may easily replace the average engineer

Higher order work will probably still be handled by humans and time spent on lower level tasks will be passed over to ai. Instead of needing 10 people on average for a project there will likely be 2-3 programmers left with an ai assitant.
The current boom in the number of software engineers will contribute to the advancement of these ai assitants providing them with unprecedented amount of data.