Sorry if this is answered elsewhere and I havent looked hard enough - are there conlangs for the agori, skrall, glatorian, vorox/zesk, and bone hunters? I assume such would be difficult since youd have to have versions for both the bara and bota magna populations.
I do have an Agori Language conlang ("Agoric"), represented by a draft Agori Language Dictionary here. Agoric has developed alongside the Matoran Language, but is still fairly unrefined in terms of material presentation. Nevertheless it has become more central to the project as I've expanded the 3rd Edition of the Matoran Dictionary to encompass the fact that the languages of the Matoran Universe incorporated some elements of Spherus Magnan languages.
Within the document linked above, there are also some materials on a Skrall Language ("Skrallic"), although that is even less developed.