Ondsel are a big part of some of the biggest improvements in recent FreeCAD versions, among them the integrated assembly workbench, some significant improvements in Sketcher, and they are organising the continued work towards mitigating the Topological Naming Problem.
The TNP mitigation is not complete yet; the developers are still progressing this.
The integrated assembly workbench isn't yet 100% merged to the main FreeCAD development branch, nor are some of the new Sketcher tools.
There could be other things that will not make it to FreeCAD at all due to 3rd-party licensing, but it's too early to discuss this. Right now, there are other priorities.