I have heard first hand accounts of these very things happening from people who have been in closed countries in the Middle East.
Amazing and hopeful.
God is going to save Himself a people, and although Believers are called out to spread the Gospel - where we fail (either through inability or lack of effort), the Holy Spirit is going to do the work Himself and break through and reach His chosen ones.
Prayers for those in the trenches, and for the Holy Spirit to bring life and light to those that were formerly dead and in darkness.