Wow – that doesn’t only look Zbrushy in the Viewport but also tool-naming in the panel looks oddly familiar :o). A very interesting development indeed – also curve-support is great, especially as surface-edges as input already hooked up.
On thing that comes to my mind is that one for SubD editing the remeshed part really needs to push down the cage density as far a somehow possible. In this low polygon state the remeshed part will obviously not capture the original shape accurately.
Right: Usefulness for SubD-Modelling good – shape integrity bad
In tools like Zbrush one usually also wants to get a very low res cage as the result of a remesh operation. In order to capture the source shape accurately one may dynamically increase the subdivision level the cage and reproject (pull) the vertices of the denser version to the precise original geometry. This way one may create a loose and perfectly editable base-mesh which will however nicely capture the source-shape if subdivided further.
I’m not sure how exactly a good solution for a limit surface based implementation had to work, but some sort of reproject to higher levels likely had to take place too (I first thought that Interpolate was what I describe – but it only works on that single, already established mesh resolution).