Since Powerplay came out I'm losing hope, slowly but steady. I've only joined at Premium Beta stage (although I would have joined at KS stage if I was only in the position to do so at the time, sadly that wasn't the case), so I don't feel as offended as some of the other backers, but at the same time I've read most of the DDA and I was really excited to see these features implemented. Instead, we're being served something completely different, out of the blue, second time in a row now. And this second time we won't even be able to play it until some undefined "before end of the year".
I'm still enjoying Elite, but without the content described in DDA and the new PP stuff being a little bit on the "meh" side, the passion is slowly burning out... Disappointing at the very least to be perfectly honest, but I'm not giving up on Elite yet. With the strong emphasis on "yet". I try to be understanding and I still have some trust in Frontier, but I'm running on the last reserves now...
If we could at least get a confirmation that the DDA features are still in the pipeline and will be worked on next (none of this soon™ stuff, but a firm "NEXT"), it would calm many backers down. I think what we need now is reassurance that we haven't been forgotten about and we are going to receive the core Elite experience we all wanted, hoped and paid for.