Of course, I didn't mean to exclude the base PS4 HDR and WCG output capability. Also there are actually additional improved visual effects on top of a higher res on the Pro version .HDR and WCG are not Pro enhancements. That would be a kick in the face of regular PS4 owners as their base consoles are perfectly capable of handling hdr and wcg.
New gameplay preview from Worthplaying.
http://worthplaying.com/article/2018/3/18/previews/107813/