Every called man of God worries about what will happen to his work after his departure. Yet, ultimately, it is God's work!
Whether an assembly can try apostles, like Ephesus (Revelation 2:2), or will follow false apostles, like Corinth (2 Corinthians 11:13), is according to the Father's will. If we receive not a love of the truth, we will be damned. (2 Thessalonians 2:10).