I'm using the Schools tab and a classroom I set up (with myself as the only student added) to allow me to use the "old path" and old topic titles to organise my notes until the end of the year (when Duo says they are eliminating the old path altogether).
But in the classroom I have there is a switch to switch between the new and old formats -- so I used the classroom to find the teacher's word list for the new path (69 topics) and copied that into a MS Word file. (it is a long list - 94 pages just for Scottish Gaelic) The word list includes the lesson numbers and new topic titles for the 69 new lessons along with the words in each new lesson.
You could use something like this to cross reference between the two formats. Something like a two column table might work -- first column the old topic titles (107) or whatever titles you have used in your own notes -- second column -- which of the new topic titles or lesson numbers you want to include under that topic.
Below is a link to a shared copy of my file on google docs. I'll leave this up until the end of the month -- feel free to make a copy if you think it might be useful.
https://docs.google.com/document/d/1kwW ... ue&sd=true
Update: I just now see that user MatOzone has already posted the "new" (69 lesson) topic titles and word lists in two earlier posts in this forum. You could check out those posts as well to see if they would be useful to you in organising your own notes going forward.