For everyone so happy about HFR, you have to understand how the BDA works. They basically mandate nothing from content providers. Hell, tons of stuff is even optional for BD player manufacturers in terms of decoding. It's been a long running complaint due to the confusion it creates.
Regardless, the UHD BD spec is nice in that they are supporting all the hoped for features, at least to some extent. But whether it gets used or not ... that's up to film makers.
P3 color space? That will get used because it's how movies are already shot. HDR? There seems to be a lot of buzz on that feature, and camera manufacturers are going whole hog in supporting it. And even with legacy content, while it may not have the sorts of dynamic range we're talking about here, most film and digital masters do have higher dynamic range than what current media and displays support. So we'll at least see an expanded dynamic range versus what we currently have, and moving forward they'll saturate more of it.
HFR though? At least right now there's only a handful of film makers pushing for it. Unless that changes, we're only going to see it in a few titles supporting it in the short to mid term. And worse, the bandwidth for this spec causes some concern. Can it really do 10-bit color, HDR, lossless object-based audio, and HFR without compromise to the image quality? We'll have to see test footage. But certainly if it forces compromises, I question if most people would prefer HFR versus the other improvements if that's what it comes down to. It seems at least a fair number of people don't even really like it. It's kind of the 3D of this generation.
