At a Wycliffe Bible Translators conference held just before Thanksgiving 2016 it was stated that at least portions of the Bible will be translated into every known language by 2024! The Billy Graham organization indicated that it is possible to preach the Gospel to all people groups by 2026! This is God’s heart!
And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come (Matthew 24:14).
In the context of the Olivet Discourse, “the end” would refer to the second coming of Jesus Christ.