In my opinion, as time goes by and advancements are made, the coupling should grow weaker - and so we'll reach a point where there would be a more clear distinction between the two tracks, and they won't share much of the same curriculum, similarly to where we stand today with CS and electrical engineering.
Electrical engineering and hardware design didn't go away when computer science emerged - quite the contrary. One could be a computer scientist or a practicing software engineer without having a full backward in the underlying technologies (such as electrical and computer engineering, including computer architecture) and theoretical foundations (from the math side, although theoretical computer science clearly covers a lot of this). But for quite a long time, I think that computer science and the field of software were driving the most visible technological change in society and culture.
I wonder if that's no longer the case, and AI and data science are emerging "on top of" computer science. We may eventually have AI and/or data science academic departments that are distinct from the computer science department in a university. While there would certainly be an intersection of topics covered - just as there currently is with computer science and computer architecture and electrical engineering - I can see the needs of training a new AI and/or data science researcher and practitioner requiring a separate curriculum. I could see that happening if AI and/or data science become the dominant driver of technological change for society and culture in the same way generic "software" was during the latter half of the 20th century.
All of this is speculation, of course. But I think it's quite possible, and perhaps likely.
I don't think it's obvious that AI and data science will be distinct fields from CS. I just think it's quite possible, and if it does happen, this is the time people will point to when it started emerging on its own.
My father-in-law had a math degree and was a math professor, and then an EE professor — the latter while he co-founded an AI lab, that hired physics major Richard Stallman and other non-CS-majors.