This series of prophecies speaks of a time when house churches explode in number, and popularity, possibly due to consequences from both the shakeup of the church, and the end times pretribulation revival prophecies that are on track to unfold in the near future, if not unfolding already.  This will also be, to some degree, a consequence of the soon coming fall of the Roman Catholic Church, and a massive uptick in persecution that will precede the rapture.  Essentially what this will be is a reaction and a solution to the preceding events, and sort of a "coming full circle" for the Church, as it began in home congregations, and it will thus inevitably end its time on Earth in the same scenario, for many of the same reasons.

These home congregations will also serve as the blueprint for the home congregations that will arise during the Tribulation, and will lay the groundwork for the Tribulation Saints to put their own home churches together during that period, as they will have nothing but the Bible, and their newly acquired faith, to get themselves started as all Church Age believers will be gone at that time.  So, when those who are left behind get saved, they will have the already existing and tried framework of how to do home churches waiting for them, courtesy of all the saints who made these happen pre-Tribulation.