New Factions/Species Suggestions

I’ve heard a lot about new enemies, such as the Created, but what about other factions? I want to here from you about what new species/factions you have in mind for Halo Infinite.

I really doubt they’d add yet another faction/species to fight beyond the created/prometheans/banished/flood. Don’t want Infinite to get too convoluted. I’d rather them focus on defeating the current forces in the galaxy then explore new ones later.