Above is the last verse of Revelation chapter 11. The next verse, the first verse of chapter 12, begins to narrate the portent of the "woman clothed with the sun, with the moon under her feet, and on her head a crown of twelve stars; she was with child…."
But there is a continuity here from Rev 11:19 to Rev 12. Mary is the "new ark" of the New Covenant". What made the old ark in the Old Testament especially valuable was its contents. So too with Mary who was with child; containing within her the Unborn Savior of the world.
Numerous biblical scholars, theologians and Bishops have found a remarkable parallel between Old Testament accounts of the ark of the covenant (Sam 6:1-13, and elsewhere) and the Incarnation /Visitation accounts in Luke. (See Unborn Jesus Our Hope, Chp. 2, footnote 13.) So, Mary is the Ark of the New Covenant, carrying Unborn Jesus within her. She is also the Woman clothed with the sun.
There is within Christendom the ancient tradition that Mary was assumed into heaven, body and soul, and in a prophetic sense, Revelations 12 confirms that tradition, bearing witness to the reality of it. Read Rev 11:19 again. Here is one possible interpretation of Rev 11:19: Then God's temple in heaven was opened and Mary, the pregnant Mother of Jesus our Savior stood within the temple. Perhaps this is heaven's version of a Nativity scene; a revelation of the New Covenant, Jesus Christ (within the new Ark). Note: Mary is Not Divine, she is Not worshiped, it is Not her temple! She is privileged however, as the faithful and ever-loving Mother of Jesus Christ, to be with Him always in a special manner; and in Rev 11:19 He is her unborn baby.
Humanity's "solitary boast", as William Wordsworth would say of her ('The Virgin', Ecclesiastical Sonnet XXV).