Elite Dangerous has been in development long time already, they just needed help to complete it. It has nothing to do with Star itizen, but they are helping each others to revive a great genre in a time when developers are too careful to go outside mainstream.
Well, I've learned it's better not to expect too much from this game. Then when/if it finally arrives in March next year it'll be a nice surprise. Better that, than be massively disappointed. I'm trying to do this, but.. heh.. it's excruciatingly difficult... I lost count of the years I've been waiting for this. We can only but hope... :)