How would you handle animate dead now? There are undead minion stat blocks, zombie/cyberzombie/skeleton grafts on the same page, and undead, and cybernetic graft under the NPC creation rules. Do you downgrade them to a minion statblock? Do you keep their normal statblock, and update it, possibly changing their CR? Do you create a new NPC with the NPC creation rules very similar to them, but using the Undead graft?