Had a play around with maps if they did increase the supreme court seats to 9 seats. Seems to be a case of compact districts and minimal county splits for supreme court seats.
A 6-3 map is doable but has two significant disadvantages: firstly the two New Orleans districts would be plurality white (albeit safe D), and secondly the 5th would be almost completely changed which the incumbent there may not be happy with.
https://davesredistricting.org/join/21f797b5-5409-4401-9903-6495faf344feOn the other hand a 7-2 map can be done with only a single county split, with existing districts preserved better, and it looks neater, but of course 7-2 is less proportional.
https://davesredistricting.org/join/fd521948-0117-4230-ae3c-822f69317fed