If they add this via firmware update down the line, then it will confirm they gimped this product in order to sell people another. Which is shady as fuck.
I don't buy it though. If it were that simple, the Pro would have launched out of the box with it, and the PS4 would have received it when it got the HDR update, if not sooner. They just released this machine that they marketed and revealed with a focus on 4k. They wouldn't leave this out if they could so easily implement it imho.







