Most of the UU are reskin only (mainly because a lot of civ have been made before the release of the tools that enable model modification), so with 4.0, it would be nice to replace some older UU graphic with better ones.
I agree. We did a lot of re-colours, and some turned our pretty bad. Replacing unit art is pretty simple.
Poland Winged Hussar: http://forums.civfanatics.com/downloads.php?do=file&id=6920
Or an other version here : http://forums.civfanatics.com/showthread.php?t=236188
As Fierabras noted, it's in.
For, Hungary maybe you should take the unit from this civ: http://forums.civfanatics.com/showthread.php?t=248462
I tried to do that in the last release, but I screwed it up. Will try to correct this time around.
Could replace some old UU : http://forums.civfanatics.com/showthread.php?t=260079
The Berber replacement will absolutely make it in - it's exactly what I had wanted back when I made the Moorish Cavalry to begin with.
Hope I'm not to harassing !
Not at all, but specific links and UUs to replace - as you've done - helps a lot.