I am trying to look at not suggesting mayor game changing dev work needed but rather small easy fixes that can be done in a single sprint or small changes over say 5 - 6 sprints that can slowly fix some elements of FW to make it better.
I am sure all have their own massive overhaul senarios but let be realistic it will not happen any time soon. Its not part of the dev plan at the moment.
I am looking at PVE only so that means missions and plexes. Do we need new ones do we need chnages to them. Do we remove them. Just remember that any chnage will have impact on the rest of the game and you have to factor in the bigger picture.