Nope, no AR in any of the mods I have worked on except the
NTotSC for
BGT project. And that was only because the original version already used unique naming, i.e. AR10PB.ARE, AR53PB.ARE, etc. Otherwise, the areas are always based on the mod in question, BH for BoneHill, DSC for
DSotSC, and TC for
CA (total conversion). If I don't use AR, I know that it is an area from my mod, and second I know I have less (but not complete) chance of someone else using that area name.
But since none of these mods are for
SoA itself (
BG1 or my TC project), I don't expect much need of someone changing the
SoA/
ToB areas to also change the
BG1 areas.