I know more about my own destiny than I do the destiny of .. erm.. destiny TM. That said, @ned described it as a steem based app, which means that it will participate in the Steem eco-system just like steempeak, d.tube and the other dApps. Personally, I think steemit.com should be redirected to steempeak.com at some point since Steempeak is significantly better positioned to serve the function that steemit.com was intended to. Therefore, I don't see that you need to be concerned about your hard work leading nowhere - the steem blockchain and other UIs will continue on regardless.