According to LDS Media Talk, the Church has announced the 2018 Mutual Theme for LDS youth. The theme is based on Doctrine and Covenants 19:23:
“Learn of me, and listen to my words; walk in the meekness of my Spirit, and you shall have peace in me.”
LDS youth use the theme each year as a guide for their course of study. They memorize the scripture, study the doctrine behind the scripture, and host activities to internalize it.
As 2018 draws closer, the youth.lds.org homepage will be updated. Currently, it still reflects the 2017 theme of “Ask of God.”
Assets provided by the church for the yearly theme include activity ideas, free music downloads, videos, articles, and more. LDS Daily will have all your updated information once it becomes available.