Thats not true. They talked about it in the interviews on Gamescom.Like, right now SQ42 may or may not release this year and there's only three more months to do it, and they haven't said or shown anything about it. At this point they should already know whether they'll make it, and owe it to the backers to clarify that point. It took them until mid 2016 to remove the 2015 date on their site, too.
They plan to release it this year, but it depends on the quality, if they wont be able to polish it enough, they will release it few months later, because they want to make it right.
And they will show a lot of it in two and half weeks.