https://www.jw.org/en/publications/books/pure-worship/summary-of-clarifications/
Is Christendom the antitype of ancient apostate Jerusalem?
Previous understanding: Unfaithful Jerusalem is a prophetic type of Christendom. Hence, the destruction of Jerusalem prophetically foreshadowed that of Christendom.
Clarification: Conditions in unfaithful Jerusalem—such as idolatry and widespread corruption—remind us of Christendom, but we no longer refer to Christendom as the antitypical Jerusalem.
Reasoning behind the change: There is no clear Scriptural basis for such a type-antitype approach. Unlike ancient Jerusalem, Christendom has never practiced pure worship. And while Jerusalem did receive Jehovah’s forgiveness for a time, there is no such prospect ahead for Christendom.
[When we examine Bible prophecies that were fulfilled on unfaithful Jerusalem, we may say, ‘This or that reminds us of what we see in Christendom today.’ But there appears to be no Scriptural basis for referring to Christendom as the antitypical Jerusalem.]
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The most important thing to realize here with this new clarification is that since the WTS no longer claims that Christendom is the antitypical Jerusalem, then that means that the Jerusalem/holy place of Luke/Matthew is the WTS. So what they have long said will come upon Christendom, they are now admitting that it applies to the WTS.
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[Luke 21:20 “Furthermore, when YOU see Jerusalem surrounded by encamped armies, then know that the desolating of her has drawn near. 21 Then let those in Ju·de´a begin fleeing to the mountains,]
[Matthew 24:15 “Therefore, when YOU catch sight of the disgusting thing that causes desolation, as spoken of through Daniel the prophet, standing in a holy place, 16 then let those in Ju·de´a begin fleeing to the mountains.]
[5-1-99 WT - When the “scarlet-colored wild beast” attacks the religious harlot, “the disgusting thing” will be standing in a menacing way in Christendom’s so-called holy place.* So desolation will begin on faithless Christendom, which portrays itself as holy.]
* Footnote
w99 5/1 p. 18 “Let the Reader Use Discernment”
See The Watchtower, December 15, 1975, pages 741-4.
https://wol.jw.org/en/wol/d/r1/lp-e/1975921?q=%22Christendom%E2%80%99s+holy+place%22&p=par
[Today, once a person has identified Christendom’s religious systems as part of “Babylon the Great” and recognizes that the “disgusting thing” is about to stand in her “holy place,” he should act on the command found at Revelation 18:4: “Get out of her, my people, if you do not want to share with her in her sins, and if you do not want to receive part of her plagues.”
Is this what you have done? If not, do not delay. Christendom’s holy place—her field of operation and her claimed religious rights—is soon to be desolated.]
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So active JW's you should listen to the warning and flee now...