Why talk about a version 6, how about making version 5.x.x to a working one!
Been around since version 3. Version 4 was the best slicer out there. A lot has happened since then, and version 5 falls through.
Many have requested documentation, and after so many years there is still nothing beyond this forum:-(((
When version 5 came out I spent a lot time with it, but I find myself using Prusa slicer more and more, and today I use 98% only Prusa slicer.
The V5 license policy is not working for me, so when i need S3D i use version 4.1.2.
I will use my money on hardware, and not old software, i'am disappointed with version 5.
Have reported many bugs, and only sometimes I get a reply back, several are accepted as bugs, but there is no new version.
So unless the next version really kicks ass, S3D is over for me.