Eh, I am not sure it that clear it could be just as unlikely, if we follow trends, Beastclaw and the Gutbuster have always been stated as different entry when AoS 2.0 came out by GW, unlike BoC and Gloomspite who where lump together to begin with. Bonesplitterz and Ironjawz are also considered separate army too and I wouldn't want to merge them just because I consider it kind of lazy.