We won't. Not in SINS Rebellion anyway. Maybe in SINS 2, if it is ever to be released.

Play 7 Deadly Sins.

https://forums.sinsofasolarempire.com/306277

http://danmangames.com/forums/index.php

Maybe it's time for you to start playing the Halo mod that fans created for Sins.

I hope whatever it is, it is something that hasn't been done before. Maybe something from Phase space that doesn't resemble what we'd typically think of as a lifeform and has an agenda other than wiping out the galaxy. 

I was involved in a discussion on this topic on TV Tropes.

The identity of the Vasari "Enemy" was theorized to be:

1. Grey goo scenario (considering the Vasari use nanotech at the present, I doubt it. Asimov's Laws of Tool Use really put this into question. I mean, humans can imagine nanotech going crazy, why couldn't the Vasari? Unless they're stupid, there's no way it could have been an evil nanotech monster all along).

2. Green goo scenario (ie. The Flood or the Zerg, a biological counterpart to the aforementioned grey goo). Extremely overdone, particularly in video games, to the point where I'd cry foul on the originality of the concept. Starship Troopers is a fantastic book, Aliens is a fantastic movie, and Warhammer 40k is a fantastic game; but having a swarm of alien locusts just isn't as original as it once was and is frankly rather boring. However, no evidence exists to contradict this. None whatsoever. The only thing I would question is how exactly these bugs would be tracking the Vasari (or could the Vasari have been assimilated without realizing? What appears to be a migration away from the enemy is actually the scouting party OF that enemy. All of the resource sites are located and dug up a bit, all of the native races are subjugated and completely reliant on the Vasari, and there's tons of stationary structures left abandoned to infest. It's the perfect scam.) But once again, I don't favor this.

3. Unidentified sentient aliens (ie. Elder Things or some precursor race). No evidence against it, but none supporting it either. Plus, why would these guys be so mad at the Vasari? Some grudge to be chasing them for 10,000 years.

4. Rouge Advent colony. Dumbest thing you'll hear all day, I'm sure.

5. My suggestion, which was an entity that has more in common with a force of nature than anything you or I could perceive. Just imagine a supernova that's pissed off at you. That's what I think the Vasari are running from, in essence. No fighting it, just getting out of its way. Of course, there is some evidence that doesn't support this theory, namely the fact that it seems to linger in certain areas while at the same time expanding outward. "Holding territory" is a concept only relevant to a being made of matter. Something akin to a force of nature would wipe a planet clean and then move on, never considering that anything would try to come back. Unlikely, but it's what I think.

Whatever it is, it is unlikely that we'll ever find out.

I mean, it's quite a ways out, right? Perhaps the devs should make how soon it'll hit a bit more clear...

Nothing to get excited about. Mysterious plague turned them into The Sims. Hearing their old comrades talking like that drove them mad with fear!

If I had to hazard a guess as to who or what they were, they would be these.

The first and most unlikely is a rebellion or uprising from the planets under Vasari rule. I can't see this one really working because I imagine if a planet-wide rebellion got that bad, the Vasari would pull out, quarantine the planet, glass it from orbit, then send in shock troops to finish the job. Population wiped out or pacified and rebllion stopped, pretty simple.

The next possibility, while more probable, I consider very unlikely as well. A coup in the Vasari government/military. They seem to be very people oriented and out to do what is best for their race as a whole and not themselves. Also I can't imagine fighting their own forces would have driven the crew of the last surviving ship of the dark armada insane.

My next guess, the nanite technology got out of hand. Whether through experimentation or the natural outcome of making semi-sentient beings, no matter how small.

Finally, and imo the most likely, whoever or whatever built the phase jump disruptors has reuturned. I would imagine their mastery of phase technology would make the Vasari look like preschoolers in comparison. They may also have more advanced nanite technology. Where this mysterious race went, and why, is a complete unknown to my mind. Perhaps they are like the Shivans of FreeSpace. They watched the Vasari, they waited. And once they realized the vasari would enslave or destroy all other races, they struck with brutal and unmerciful force.

Or, another thought just came to mind, maybe the phase jump disruptors were an extinct alien race's last attempt to stop whatever is hunting the Vasari. An alien race is thriving in their own area of space. Then these unknown destroyers appear and use the same brutal efficiency that is now being employed against the Vasari. This alien race attempts to cut off pursuit by laying these disrutpors in a last ditch effort to escape destruction. It may have worked for a time, but in the end, the destroyers succeeded in wiping them out. After perhaps a thousand year chase the destroyers return to thier old stomping grounds and find the Vasari, just as unsuspecting as their last prey.

Not sure if this is off topic or not, but after reading the posts above, I couldn't help speculating.

i still hope its something like The Flood from Halo. that wuld be sick to play as them.

^ i think you mean sentient

I dont think this should be revealed to be honest, the mystery is whats best, i mean some amazing technologically advanced race is still boring, i reckon they're gonna save it for a campaign, the 'enemy' will arrive in space, the three races will band together and kill the enemy, like the Night elves, Orcs, humans Vs Burning legion in warcraft, and elites, Humans vs flood and dozens of other games

I agree--mystery is what makes it work.

In a way, this is continuing the story of Freespace, making reference to the older species that left the secret to defeating the Lucifer.

This begins to touch on my thoughts, but it's the origin story of such a force that makes it what it is.

I look forward to Sins 2 answering the question within a campaign, assuming they don't manage to destroy the actual game mechanics. I would drop my idea here, but I see it two ways: 1) I could hold onto my idea and if I ever have a profitable use for it in the future, then I can modify it to that end. 2) The few times I've playfully predicted the end to a video game (always one already released), I've turned out to be right and my hackneyed guess is a major disappointment to me. I've learned to stop jinxing myself by not making such a reach, however good or bad.

I will say that I don't support the gray goo or green goo. Occasionally done well (Zerg, Replicators, etc.) but I agree that we don't need a rehash.

or Auqia

Space Ponies.