To be honest, most of the changes I would make would be minor. Your changes to the blue are for the best. Like the wordmark and definitely think it need the shoulder patch which was flat dumb they didn’t include it. I could understand leaving it off it was the same logo on the chest like our previous uniforms.
The only changes I would make to the home and Road are to widen the accent colors on the arm trim and under the wordmark to match the numbers more. Then I would add the trim around the neck which I would really do to all 4 uniforms.
The black is delicate issue because any changes by adding white kinda kills the effect they were going for. The only change I thought about and it could be a disaster is have the main potions of the wordmark that dazzle silver while still retains the blue and red drop shadow. Would be a good mix between bright white and black and would be a unique look. It would be hard to mock up because gray or flat silver wouldnt provide the same effect but I think it would really make the stuff pop. Or maybe keep everything the same and just add a 4th layer of the dazzle silver as an outline like our 2003-2011 set which was 4 layers. Might make the separation of colors easiers.