It can keep going!
Intelligence -> societies -> technology -> ?
One has to wonder how far can emergence stretch given enough time, some kind of entropic limit probably exists but I'm just a layman, hopefully someone more knowledgeable can share if we already know a physical hard limit for emergence.
After a brilliant start (atoms etc.,) it starts to be problematic once one hits societies. After all, the earlier progressions are undeniably astounding stable successes in their various incarnations. A pessimist might say 'Stable' societies so far have tended eventually towards being self-destructive tyrannies.
I like your progression. It makes me wonder if intelligence could lead to technology absent societies.