Yes, the only thing I can ever remember they giving us was some art for MechScape (not SD), and then a few pieces of art for SD through the official homepage. And one audio track that was supposedly going to be in MechScape (again, not SD). The fact remains that we haven't from them AT ALL for the the last 1,5 years+. For a short amount of time some years ago there was a leaked MechScape trailer on the web, but it soon got pulled down by Jagex, saying this was a video to be used only internally, and didn't nearly represent what SD/MS looked like. It basically looked like RS in space, pictures of the trailer can be found here:
These are all minuscule or unintentional pieces of information. The rest was all very vague details of what the universe would be like, with 4 playable races. They even claimed they had found a way to get rid of grinding, then later admitted that was only a goal they were working towards but didn't reach, not an actual feature of the game. And with that BS, we were left in the dark for a long time. I haven't checked StellarDawnCentral.com for a long time, but looking through the news it seems that they are rather scarce. The last was in December, where the SD Vice President was quoted in a press release from a completely different site as saying sci-fi fans have a much brighter future. Jagex haven't bothered to keep in touch with the actual fansites at all (or almost, they sent a statement when SD was put on hold). So I have no trouble maintaining that Jagex have handled this in an extraordinarily bad way, losing all interest before driving the game to a standstill. It has failed on all accounts, and I do of course wish Jagex good luck and urge them to keep thinking fresh ideas, but DO NOT make the same mistakes twice.