The LDS Church acknowledges that if there is a Father in Heaven, there must be a Mother too. Their official website says:
Latter-day Saints direct their worship to Heavenly Father, in the name of Christ, and do not pray to Heavenly Mother. In this, they follow the pattern set by Jesus Christ, who taught His disciples to “always pray unto the Father in my name.” Latter-day Saints are taught to pray to Heavenly Father, but as President Gordon B. Hinckley said, “The fact that we do not pray to our Mother in Heaven in no way belittles or denigrates her.” Indeed, as Elder Rudger Clawson wrote, “We honor woman when we acknowledge Godhood in her eternal Prototype.”–Gospel Topics Essays: Mother in Heaven
A book receiving a lot of attention is called A Girl’s Guide to Heavenly Mother which affirms this view which has a lot of traction among younger Saints in particular.
Latter-Day Saint apologist Jaxon Washburn has taken things much further, openly equating Heavenly Mother with Asherah in the Old Testament:
We believe in God, the Eternal Mother, and in Her Son, Jesus Christ, and in the Holy Ghost.In ancient Israel, Her name was Asherah, meaning “happiness,” “blessedness,” or “holy place”.The Queen of Heaven, She is the Mother of our spirits.She possesses a glorified, physical, and tangible body of flesh and bone. Exalted, divine, immortal, perfected, standing fully equal with Her Husband.She holds all power, glory, and intelligence in perfect unity with Him.We sat and listened, before this world was, as both She and the Father presented the Great Plan of Happiness.She was there as the foundations of the earth were laid, the clouds above established, and the seas divided.Every one of us is made in Her likeness and image.Her work and Her glory is to bring to pass the immortality and eternal life of humanity.She hears our prayers, She loves Her children, and She readily pours out bounteous blessings upon them that turn to Her.Our theology begins with Heavenly Parents. Our highest aspiration is to be like Her and the Father.She can be found in the holy temple, in nature and the fullness of its creation, and near to our hearts whenever we need Her.The Son beckons to us all, “Behold thy Mother”. All things denote there is a Mother.#HappyMothersDayArtwork: J. Kirk Richards, “The Goddess Speaks” 2014
While I expect the LDS Church to shrink in the USA, I think it will grow for some time in Africa. I wonder if this doctrine will help or hinder that growth?