I personally think the Neo-Crusader armor is fine.
We maybe need to consolidate some of the reskins to generate a little more variance in the armors though. Shiny, dirty, faded, jungle camo, etc.
But what we might actually need is more variation in the armor. The Mandos are presumably all over the place, and one would think they have put effort into customizing their armor, be it painting on Neo-Crusader armor or starting to evolve the armor a bit. Maybe the Neo-Crusader purists like to keep their armor in its vanilla state, as a way of remembering the glory days.
And it would certainly be cool to see the Dxun camp start to evolve the amor a bit. Separating the helmet from the armor (similar to SWTOR-style mandalorians), armor that is much more cobbled, but still very "mandalorian" in design