If it is any use to those with an iminent start date, I am on classic conversion at present as are three others.
We were told that there will be a total of 12 classic S/O conversions, including us, in the very near future.
I don't think any of the remaining 8 have been filled as yet so would expect the next couple of courses to include 4 classic.
You won't know for sure until your first day.