Yeah, I believe so far they have all of the neurons and muscle cells and have modelled the motor behavior, so the worm will wriggle and crawl around. I don't think they have yet simulated other biological processes. But the full "brain" is implemented and running.

There's also this which is a complete worm "brain" but even more simple motor behavior, that runs in your browser. https://heyseth.github.io/worm-sim/