My Thoughts:
So I’m actually surprised by some of the responses that I’m seeing here. I hadn’t seen any of the competition sets until yesterday, and when I did, I was frankly getting worried already. That’s not because Sokoda’s set wasn’t good enough to win, but because this isn’t a “MoC contest”. It’s submitting ideas for sets that will get sold, and so little things like being able to depict a rotating, threefold diorama with clarity on the box art are the sorts of minutia that can come into play with stuff like this.
This doesn’t write off the possibility for an anniversary tribute of some kind, remember, although I wouldn’t hold out hope. I think that, whatever happens, this at least shows Lego that Bionicle fans are still passionate. Whether we get something for the 20th anniversary or not, in the long run, this will have a positive effect on both the community and on The Lego Group’s perception of the community - if we stay strong from here on out.
As someone who is also involved in the system community (I don’t MoC much myself, but I pay attention to what’s going on) I am actually surprised by the number of comments about the winning sets not deserving it. Out of the competitors, they were definitely the ones I was most frightened by, and none of them are poorly done - plus, they all have alot of stuff going for them from a marketing perspective. As much as I would prefer a Bionicle set over any of them, I also know that Lego is a buisness, and all three of the winners have a lot more going for them from a marketing perspective (and I’m not just referring to the brands at play).
Lego has approved those Ideas because they are good ideas, and not because Sokoda’s idea was bad or because “they don’t like Bionicle”.
Whether they consider Bionicle to be at all a “viable” IP is more questionable, but if we all disappear into the woodwork or rage in disappointment ala-2010 in response to this, we’re shooting ourselves in the foot. Keep creating and supporting Ideas sets for Bionicle! Sokoda’s had the best chance out of any that I’ve seen so far, but that doesn’t me that he or other MoCists won’t create something equally or even more amazing around the corner. The only thing that can stop us from getting at least this far again is ourselves. It will always be in Lego’s hands at the end of the day, but if Bionicle appears as a consistent, repeating winner in future brackets, it will speak volumes.
I think the thing that would disappoint me the most, about this whole ordeal, would be if the community gave up at this stage. Not because the situation doesn’t look bleak (because it does) - but, like the wise Axonn once said, it’s the lost causes that are worth fighting for. 
If anyone disagrees with some of the points I’ve made, I’m happy to engage in a friendly debate - because I think these are all really important things for the Bionicle community to be considering going forward.
@Sokoda - Huge congrats for what you’ve accomplished, both in the community and in the quality of the MoC itself. Do not be discouraged by the result, and definitely don’t make the mistake of thinking that it’s a reflection on the quality of the build - your set is amazing, and one of the best tributes Bionicle has gotten in a long time.
A few quick responses to specific comments:
I wouldn’t say that’s the only chance, but again - from what I know of the system community - that’s our best shot. Someone make, like, the gate to the colisseum, or a brick-built Tahu (like that Voltron winner a while back). Remember that Lego wants something that looks good on the box art, not just when it’s finished.
…that’s a common misconception. They said “Bionicle” sold well, they never actually specified that they were speaking about the 2015/2016 period in that tweet (if you’re referring to the one I am thinking).