The Voxel Plugin for Unreal Engine is not compatible with the version Conan Exiles uses. It would also require new maps, as it wouldn’t be compatible with Exiled Lands or Isle of Siptah.
From what I’ve heard this has already been done. At least the smarter AI. But its only a frame work and requires each and every NPC type to have something entered in. Which hasn’t been done yet (at least on revisions we know of).