Penrith have done well, as have most other clubs, with their 2019 jerseys.
My only concern is that in that white jersey reveal image, you can see the shorts that accompany the white jersey are also white. Presumable the socks will also be majority white.
That's a lot of white. My concern is that it's too much white.
Remember that mostly gold Brisbane kit several years ago? They paired the yellow jersey with yellow shorts and resembled the Brisbane Canaries. Everyone hated the jersey as it was 'too yellow', but had they remained with maroon shorts, the overall kit would have looked WAY better and it would have looked pretty good.
I fear this all-white Penrith kit may have that similar vibe. I reckon keep the black shorts for both kits, but I will happily be proved wrong once we all see them on the field.