A:Answer Well probably no PS4 games will support 4K, though many will support higher than 1080p. (I've read that 2500ish lines of resolution might be common).
At any rate, I'd recommend a high end Sony or Samsung using a VA panel. I guess because it's cheaper, a lot of TVs are now using IPS panels instead of VA, and VA has *WAAAAAAAAAAAAAAAAAY* higher contrast than IPS does. Like when I was looking at TVs earlier this year, the VA based one I bought has nearly 7000:1 contrast (REAL contrast, not fake), while IPS based sets I was looking at had 700:1. The WORST VA based TVs still had over 2x the contrast of the BEST IPS sets.
I think ONLY Sony and Samsung still sell VA TVs, and not all of them are anymore either.
Also watch out for how many HDMI ports actually support HDMI 2.0/HDCP 2.2 so you can actually use them with 4K/HDR. All of Sony's 4K sets support 4K through all their HDMI ports, but they're the only company that's true of. Samsung you have to move to the 8 or 9 series to get all the ports supporting HDMI 2.0/HDCP 2.2, and other brands usually just have 1 port that supports it.
On top of that, Sony and Samsung bother making good scalers for their TVs, so non-4K content still looks great. (Literally SD content still looks fine.) WAY higher quality scaler than other brands.
I sound like an ad, but seriously I did months of research and if you care about games (and being able to support a variety of other gear at different resolutions), you're really limited to Sony and Samsung.
Also, look out for TVs that don't have analog inputs anymore :-/