“…some of the 347 existing missions will be divided to form an additional 58 missions. The Church periodically opens, closes and divides missions around the world to accommodate increases and decreases in missionary numbers and other needs. The new missions will function in the same areas covered by existing missions. No new countries or territories are opening to missionary work. These creations will bring the total number of Church missions to 405.”
"Truth shall spring out of the bearth; and righteousness shall look down from heaven. Yea, the Lord shall give that which is good; and our land shall yield her increase. Righteousness shall go before him; and shall set us in the way of his steps."
Psalm 85: 11-13
Read more here: Missions to Be Created to Accommodate New Influx of Missionaries