John Roberts is the Mitch McConnell of the Supreme Court. Both men are intensely partisan; both care deeply about the public perception of their respective institutions; both are pragmatic dealmakers; and both take the long view.
McConnell has made it clear that he thinks the GOP would be better off without the albatross of the extremist wing of its base. You have to believe Roberts feels the same way, and was shaken by the images of the riot, which was directed at his part of the establishment as well as Congress. How will he respond? Will he move slightly to the left, and become the judicial equivalent of a Never Trumper, with Thomas and Alito in the opposing role of Flight 93 justices? Or will he embrace Christian carve-outs and abortion restrictions in the hope that appeasement of the far right will put the evil genie of fascism back in its bottle?
If you have to bet, put your money on the latter.