The last church will look like the first church. It will meet in homes, be based in the Hebrew Biblical truths and have the power of the Holy Spirit indwelling clean holy vessels, so that the same power which killed Ananias and Sapphira, will be evident in this remnant church. That is the direction the Father is leading towards.
A lot of big churches are going to small group services during the week that replace the functions of sunday school and the smaller social functions that sunday schools can provide. The churches are large enough that folks get lost in a crowd so they want to provide “a connection” so that needs can be met on an individual level.
The leaders of these groups get some training and are commissioned by the pastor and deacons and are “overseen” to make sure individual groups don’t go off on tangents and be undone by unorthodox teaching. Sometimes the church pastor has a message he is working on and he’ll suggest to the ‘cell leaders” passages of scripture to be studied prior to the “big message” onSunday when all the members gather.
This I think is what will be the model when big buildings and overt public worship starts to get attacked and taxed out of existence. Pastors and deacons will still have jobs to do in keeping the “smaller groups” together...like the apostles and the lesser disciples and later called teachers who would visit the early house churches to teach and to deal with spiritual issues that would arise in these churches.(The epistles give testimony to this). You had a “church” of some big city in the early days, but this church had many house groups spread out in the city obstensibly to mitigate the effects of persecution. There would be occaisional big gatherings and a visiting apostle or teacher would come to expound on the gospel as the spirit leads. The latest Letter or epistle might also be read and shared amongst all the groups in that city.
Churches need not have big imposing structures to be viable, they can be somewhat amorphous with the leadership being flexible in their operations. Will there be expressions of Holy Spirit power of the same strength as what was evident in the early church? The early church apostles had that power but not everyone who was saved had the Holy Spirit express himself thru one in that way. Individuals had specific gifts they were given, but not all healed, not all taught, not all prophesied. Many spoke and prayed in tongues but Paul had to warn them not to do so in a way that would bring confusion, but to keep it private unless there were translators who could translate what was being uttered. Above all, Paul preached Love, without which tongues and teachings would be nothing but “crashing cymbals”. I think if these “new churches” concentrate on love of God and Love of neighbor, the rest of what God will do to empower these churches will follow like “a mighty rushing wind” or a “still small voice”.
“The last church will look like the first church. It will meet in homes”
I have no idea what the “last church” will be like. If it happens to be a house church, I think that would be fine. Certainly that is the way the church started, meeting in homes. However, since it was the custom for Christ to teach in synagogues I don’t think that God frowns on congregations owning a building either.