Poor Sandstorm. As leader of the world he feels awful about this, and bids his world farewell. Only for Rodimus to mock him and remark that 'Cybertron's a better world anyway'. Douche. Still, never mind, because the next episode Sandstorm's in, he seems to have forgotten all about his erstwhile world. All's well that ends well, eh?
Other than that, Sandstorm has been very much a background player in Transformers fiction, always being around, but never doing much. Unless you count buying the farm in the Dreamwave continuity as doing something. At this current point, it would seem that he's aboard the Lost Light, looking for the Knights of Cybertron. So hopefully, he'll pop up at some point. Which is possibly bad news for those of us wanting to get his G1 self, as Rocherts will no doubt make him amazing. Gah.
Sandstorm's Tech Spec bio was followed almost to the letter by the G1 cartoon, he shows off his manueverability AND his ability to make dust clouds for camouflage in Starscream's Ghost. His devil maycare attitude also gets a look in, but not too much, sadly. Because he wasn't used much, we never saw it. Although in the comics, he doesn always seem to be on Wrecker's duty, so maybe that would be a factor there. Who knows, maybe one day we'll get a whole series just about Sandstorm. Until then, here's Paradron's last moments, and Rodimus being a complete douchecanoe: