They never finished the timeline. There are still seven slots left to fill. http://www.swtor.com/info/holonet/timeline
I'm going with the assumption that Revan is dead until proved otherwise.
It might be hair, but a side-by-side comparison with the Revan and this dark figure maybe similar, but I don't think they match. I do know a forensic artist, but he doesn't work for free.
By the way, I, hope, that the Duel of the Fates theme is in the game!