Hi, I too have mixed feelings about the wireframe in 2.8 now. Blender Foundation focuses too much on animation, VFX and game development and forgets about environmental design and arch viz (massive amount of objects spread over large space).
I would like the wireframe to keep the simplicity of every Blender version through history (except some of the first ones) - the non-anti-aliased wireframe, super sharp, super fast, and you can use the fact it’s non-anti-aliased to see if an edge is completely straight, horizontal or 45 degrees.
I like the fresnel effect and all the customization in 2.8 but for me, wireframe is supposed to be simple, see-through representation of all geometry. I would love for the wireframe to be a viewport shading mode again with it’s own customization because I suppose everyone likes wireframes in one way (see-thru non anti-aliased) or another (random colors, wireframe overlay, fresnel).