User blog comment:Arbington/The Next Cycle/@comment-3228423-20120802021014/@comment-899316-20120802023532

Anderson says that the Reapers are avoiding Parnack, homeworld of the yahg, and the unnamed vorcha homeworld, in ME3. That means that the vorcha are definitely in. On the matter of a yahg single-handed defeat of the Reapers, I find that to be highly unlikely. There is no way one race could defeat the reapers. Different strategies, different skills, and different viewpoints are required for a victory. The Prothean Empire acted as one race, and that led to their defeat.

As for the raloi, they cut all ties with society, and then there's no mention of them afterwords. A Reaper assault on Turvess would be something of note. I think that, given the complete silence on the issue, the plan seems to have worked. That means there's a high probability that the raloi will survive into the next cycle.

As for pyjaks, they're already developing societies. They're living in ramshackle colonies, hoarding any technology they can find.

Space cows are less likely, but they are showing signs of intelligence and curiosity. I doubt their physical changes will be too different, actually, but they'll certainly develop society of some kind, and that'll probably happen soon.

As for the varren, we have historic precedent. The rachni were used as highly intelligent attack dogs at the end of the Prothean cycle. They developed a space-faring society in our cycle. Varren are used as highly intelligent attack dogs at the end of our cycle. They will likely develop a space-faring society in the next cycle.