On May 26th & 27th 2018 , Devin G. Durrant, first counselor in the Sunday School General Presidency met with members in South Africa. Brother Durrant informed Sunday School Leaders that the 2019 Sunday School Curriculum will be an entirely new format. The Quorum of the Twelve approved the new teaching methods and curriculum. Class members will be asked to participate to a much greater extent during Sunday School lessons. Students will be asked to prepare at home prior to Sunday lessons so that they can contribute to the lesson during Sunday classes.
A pilot program was recently initiated by The Church that contains some very enlightening samples of what may be instituted:
https://www.lds.org/bc/content/ldsorg/manual/test/Come-Follow-Me-for-Sunday-School.pdf
https://www.lds.org/bc/content/ldsorg/manual/test/Come-Follow-Me-for-Primary.pdf