Brennan finished -3, further to the Liberal extreme than Stevens or Ginsburg.
Not sure we are seeing the others moving liberal. Gorsuch, Barrett, & Kavanaugh are all flat.
Thomas is moving back towards the center line, but it looks like he’s following the same bell shape observed in many other conservative justices before him (Burton, Harlan, Rehnquist, Scalia).
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There appears to be a definite “pull” to the liberal end for many of the Liberal Justices over time though (Marshall, Brennan, Stevens, Ginsburg, Sotomayor).
Alito may continue on his trajectory, or he may be on the front end of his bell curve.
Kagan is trending “pull”, but at a much shallower slope.