I don't want to upgrade with half measures. So to be reasonably future proof I would need a hdmi 2.1 fully HDR capable TV and similar hdmi 2.1 compatible amplifier. (both not available yet) However since I do most of my gaming on a projector I rather wait until a good native 4K HDR projector supporting 4K60 with no chroma subsampling comes down to at most CAD 4000. ($50k atm)
I already have the pro though, since I needed a second ps4 (sharing a 500gb with my kids, too much trouble) and it gives a decent boost to psvr. It was only CAD 399, a fraction of the cost of upgrading my living room and game room to capable 4K and HDR.
Last gen I spend CAD 4500 on an early 52" 1080p tv (2006) and a year later the same on an great 1080p projector. I still use both of them. I expect a good 4K replacement to last 10 years or more as well.
Besides the cost and unavailability of the right hardware, there is hardly any content either. 4K blu-ray is not doing well, my cable has only 2 experimental 4k channels, one with some sports (which I never watch) and the other with a 6 hour loop of demo material. And my internet in this small town isn't capable of streaming 4k. So yeah, rather pointless to jump in now.