The first one that I want to ask is that Magnus wrote that the Swarm would be/is able to recreate extinct species like the, as evidenced by the the Swarm Ironwood being a ressurected Ironwood Sentinel (<--Me Paraphrasing)
So is there any truth in this?
I would not saw it's recreating extinct species. Ironwood Sentinels were last seen in Preview before status themed stratums existed and many assets have moved around since then.
In any case, most of the Void creatures still have some differences from their normal versions. That leads me to discredit the idea of ressurected creatures and lend more to the idea that it's creating deadly shadow copies of existing monsters, albiet with some dangerous modifications.