I did find lists of movies that moved on and off the critics 100. See below.
Since people were talking about conscious moves toward greater representation and the impact of #metoo and Black Lives Matter on the list, I tried to think of old movies that I would have expected to jump between 2002 and 2012, to see if that actually happened. I came up with The Battle of Algiers.
In 2002 in was 90
https://mubi.com/lists/sight-and-sound-critics-poll-2002-top-films-of-all-time
http://old.bfi.org.uk/sightandsound/topten/poll/
in 2012 it was 48 in the Critics Poll and 26 in the Directors Poll
https://www2.bfi.org.uk/films-tv-people/4ce2b6f24787d/sightandsoundpoll2012
Here's every new film in the top 100 that was either not on the list in 2012 or further down the top 250:
Cléo from 5 to 7 (1962): #14 from #202
Meshes of the Afternoon (1943): #16 from #102
Do the Right Thing (1989): #24 from #127
Daisies (1966): #28 from #202
Portrait of a Lady on Fire (2019): #30 NEW
Killer of Sheep (1978): #43 from #202
Wanda (1970): #48 from #202
The Piano (1993): #50 from #235
News from Home (1976): #52 NEW
The Apartment (1960): #54 from #127
Daughters of the Dust (1991): #60 NEW
Moonlight (2016): #60 NEW
Goodfellas (1990): #63 from #171
The Gleaners and I (2000): #67 NEW
The Red Shoes (1948): #67 from #117
My Neighbor Totoro (1988): #72 from #154
Spirited Away (2001): #75 from #202
Céline and Julie Go Boating (1974): #78 from #127
The Shining (1980): #88 from #154
Chungking Express (1994): #88 from #144
Parasite (2019): #90 NEW
Get Out (2017): #95 NEW
Black Girl (1966): #95 NEW
Tropical Malady (2004): #95 from #127
Films that have fallen off the list:
The Godfather Part II (Previously 31)
Gertrud (Previously 42)
Raging Bull (Previously 53)
Touch of Evil (Previously 57)
La maman et la putain (Previously 59)
Wild Strawberries (Previously 63)
Pickpocket (Previously 63)
Rio Bravo (Previously 63)
L'Eclisse (Previously 73)
Les enfants du paradis (Previously 73)
La Grande Illusion (Previously 73)
Nashville (Previously 73)
Chinatown (Previously 73)
The Magnificent Ambersons (Previously 81)
Lawrence of Arabia (Previously 81)
Fanny and Alexander (Previously 81)
The Colour of Pomegranates (Previously 84)
Greed (Previously 84)
The Wild Bunch (Previously 84)
Partie de campagne (Previously 90)
Aguirre, Wrath of God (Previously 90)
The Seventh Seal (Previously 93)
Un chien andalou (Previously 93)
Intolerance (Previously 93)
The Life and Death of Colonel Blimp (Previously 93)
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