I am with RatonLaveur here. In fact I feel that there is a real problem in the FC community with users coming from cad environments like autocad, sketchup,... and suggesting "improvements" from their experiences in those workflows. I really don't mind and would actually find it great for FC to have support for different modeling workflows BUT NOT on the expense of degrading existing good functionality and I really don't think that this things (fully parametric modeling, direct modeling, sketches, drafting,...) can or should be mixed that easy.
From the three main pillars of the fully parametric design workflow (sketch, part and assembly), at the moment in FC, sketch is actually the only one that one could say is more or less finished and working the way it should, users are however continuously misunderstanding it and are trying to use it for things that it was never meant to be used for. I don't feel that such development would improve sketcher or FC in general, but would make it worse, possibly even kill it because it would try to be everything, but would most probably actually do nothing properly. There is an old joke for sketches (that is actually just a bit exaggerated version of the recommended best practices for sketches in a fully parametric design) that is "you should think twice if you really need more then just a simple rectangle inside your sketch"
As for having some more options / control over different elements of a sketch, there is already an implementation of sketcher exports done by realthunder that will give quite a bit more control for such needs but it is not in the master yet. And as for some of the other "improvements" IMO we should be more careful with this and rethink, research and discuss much more before making changes and implementing things, for example it is probably much better to make bigger improvements in the draft WB then extending the sketcher too far...