Same here. It's been kinda disappointing hearing the release was supposedly delayed, and no response from Arytom after asking about helping beta test 16. From reading the replies in The Road to Zorin OS 16 I'd assume Kyrill will likely do the same, but to be fair I don't know the Zorin brothers personally so I can't really make a fair judgement.
I'm not sure why they'd want to be silent about releases though... Perhaps they don't want feedback (which seems rather unlikely), maybe they want to build hype, I don't know. I'm not one to question them as it's out of my hands.
Regardless, I just hope they give us an insight into the developmental stages to let us know that indeed, there is a new version in the works and it is indeed going to be released for beta testing on <date>. Seriously guys, is that too much to ask? I love Zorin, but I fear due to the lack of involvment and information to their fans I may end up moving on later down the line. I really hope it doesn't come to that, as it's such a good OS.