Yes - just a test of concept 
At the moment you can try also new jendrzych’s icons.
He just released first version of SVG icons for 2.8 on the same grid as 2.79 (to test), for now also without modifiers.
I’m not sure if I need icons on a huge lists like modifier list is.
I don’t remember if I scanned the list by icons ever or if I use just a text to find modifier.
With modifier list system (icons everywhere) they should be on many other places. At the end, they do it hard to read (maybe). Probably better could be use icons on ui elements where text is not wanted or to use for visual attraction of some parts on a list, but seems to me contraproductive to use icons on extended lists.
Already posted simple examle
https://blenderartists.org/uploads/default/original/4X/5/6/2/56275b0b7e8c2ed0e7e2e7713d577f19d9a8e261.png
