It not something I initially considered to be likely this year, but it is a distinct possibility. My feeling is if there are more predominantly AI games than hand crafted ones near the end on the Jam, then it really is spoiling it, and it would be best if they separated into their own stream. Obviously there would be issues with boundary cases.
If they are to be separated I'm then not bothered what happens after that! Either options 2 or 3. Maybe public voting for fun, but not take up loads on time on the expert panel stream.