Edit: the first sentence is somewhat mistaken, so please disregard it if you will.
Despite the name leading us to believe that it'll feature gameplay similar to the Age of Empires series, Hopeabandoner is evidently aiming for his RTS to be more like the Starcraft series, which kind of disappointed me since I'm rather fond of the former. There's also some plans for "original elements", which probably have something to do with unit customization (something that's been available since 1999 in Warzone 2100, along with a crapton of other RTS games). Even so, the pony fandom doesn't have enough real time strategy games and it would be nice to actually see one get finished for once, so...
Follow the tumblr, I guess?