Its not really requiring AI, it just requires the trail. What it could have happened already, and the possibilities. If you know what the possible outcomes are, then you can trace it back from there. Most likely, this is gone, dude has been doing this full time and making money that way, he is getting funding basically because its entertainment at this point. I believe that AI will not help that. However, one danger of AI is that it can brute force, and considering Bitcoin is very hard to brute force, if AI could figure out a maximize the efficiency of doing it, while you can't really do that on very new ones, the old wallets that nobody ever touches could be a problem. Maybe it will take 10 years, maybe it will take 20 or 30 years to crack, but since those wallets are not moving, someone can take 20 years to do that.