The last of the eleven proposals for urban ministry. In subsection j, the last few opportunities involved newcomers to cities and people on their outskirts (geographical or otherwise).
517. k) Through new parishes and chapels, Christian communities, and pastoral centers, strive to make the Church present in the new human concentrations that are growing rapidly on the outskirts of large cities due to the effects of internal migrations and exclusionary situations.
It may not always be possible to establish new parishes on the fringes of cities. But somehow, perhaps lay people are getting the call to reach out to others there. For deeper examination, an English translation of the 2007 document from the Aparecida Conference.