Pretty much the same. I think they actually starting preparing people by modifying the former Talk No. 4 (nowadays No. 3 I think), which had to ways to be presented: If it was based on the Insight book and assigned to a brother, it remained being a talk, but if it was based on the New World Translation the instructions were as follows:
When material based on the New World Translation is assigned to a brother, it should be presented as a demonstration of family study or of field service. The assistant should be a member of the student’s family or a brother in the congregation. Usually, the school overseer will assign the assistant and the setting. If an elder is given this assignment to demonstrate the art of teaching, he may select his own assistant and the setting. Additional scriptures that highlight Bible principles that tie in with the theme may be included.
I somehow think, they were preparing people to accept having a new "school" where the three talks are given as mere demonstrations or presentations.