I spent a couple of decades in a software development environment and if release dates were pushed back much more than a month there had better be a good reason. I can't imagine what kind of reason they have to delay a year. And delay with no mention of why or when to expect it was usually pretty tough on the managers income at the company. There has been no mention of a beta version, and any serious software company will have a limited beta test that some of the serious current customers will be offered to test. Maybe they are doing this already, but I really doubt it.
If I had to guess (and seeing as how that is all anyone can do) I would imagine they have one main developer who is their "superman". I seriously doubt management has any idea how to properly develop software. Given the silence regarding the year overdue new version, I would say they is no communication between management and employees beyond what "they need to know". Doubt they have a proper development schedule that is followed. They also must have a feature creep problem. Companies that are this slow at releasing software generally started off with a list of features that was supposed to be the new release. Every time management sees one of those new features live, they realize that there are 10 other smaller features that would really make that feature shine, so they tack it on. They will do it often enough that it eventually kills the original framework because it was not designed for all the extra weight. Management will bitch and moan about it, eventually giving in, and it starts over again. The trick to designing software is the planning stage. If you take the time, and work openly with everyone, the first plan will actually come to a natural finishing point, then beta testing happens. Simplify3d has not come to the natural finishing point. To me it looks like they have a couple of main people that don't openly communicate with each other, likely both want to be right, and will fight instead of seeing it is not a contest. No one wins when your company is run this way.
I am so glad I am retired and away from privately owned software companies.