I'd like a trace bitmap where the user can choose the type of node utilized for that and not have the weird node choices made where there are no segments between the nodes/etc. That and zooming in needs to be great enough magnification to actually align nodes and there needs to be some gizmo for resizing when the selection arrows(Size and Rotate) can not be seen when zoomed in too far. The UI on 1.4 becomes bogged down as well when dealing with lots of generated paths(Via Trace Bitmap). And there needs to be some one click method to hide the viability of all the Paths/Objects but the one selected and the same toggle for un-hiding.
And as far as Inkscape placing SVG nodes too close together when using traced bitmaps that needs to have some user setting to go along with the node type as well because that's a great problem for importing SVGs into Blender 3D where the SVGs/Paths do not import properly and the SVGs have to be edited by hand in Blender 3D to fix issues with nodes and surfaces not appearing and such errors that are almost impossible to track down and repair.