[What's next after the Sentient existence?]

Hello, I just played this since March; got to check the whole synopsis, I may not be accurate but then again, I got hooked-up to the storyline.

I get to know about the Grineers, Corpus, Infested, Sentients and other faction stuff like colonies, syndicates, orokin empire, so on and so forth. Gameplay is badass and so thrilled with other upcoming massive expansions I can't wait no longer.

I'm only intrigued if what threat comes after the Sentient Saga to the origin system? Ofcourse "The New War" hasn't released yet, but its not that bad to speculate right? I mean if Fandom still prevails...