Other fantasy worlds slice up magic differently. I personally would like to see the concept of magic schools stick around in some form but the D&D schools always felt a bit arbitrary in their divisions.

I feel like necromancy could definitely be split up into "actual NECROmancy" and "Restoration is a perfectly valid school of magic, and don't let anyone tell you otherwise!"

Enchantment also feels like it could stay, though maybe with a different name; although realistically it's already kinda covered by the [Mental] trait. Anything that previously referred to "enchantment spells" could be changed to refer to "mental spells"

Abjuration, Conjuration, Transmutation, and Evocation were always the ones that felt the weakest in terms of having well-defined boundaries.