What happened to the other

I'd go with the title and suggest if they ain't alive they are probably dead.

Who cares. I was just concerned that Tina stays alive.

Let's not forget about those nanobots still potentially activate in every combatant's bloodstream. A dystopian sci-fi concept treated as a joke without given deeper thought, which I think is genius to overlook. Makes the moment of inception more surreal and funnier despite the dark theme within.