Well playing at 4k is still a niche market. Maybe 10% of gamers or even less use it. According to a question I asked on Swecklockers, a Swedish gaming forum where 700 people participated only 10% played on true 4k, 45% played on 2560 x 1440, 19% played on 1920 x 1080 and 30% played on somehting else between 1920 x 1080 - 3840 x 2160 excluding 1920 x 1080 and 2560 x 1440. 1% gamed on 5120 × 2880 and 1% above 5120 × 2880.
We cant adapt the gaming market to the 10% players who use 4K, they can simply turn RT off, rather then taking that function away for everyone. Would be as insanely as to adapt the whole gaming market to the 2% that play on resolutions above 4k.
And how small is the niche for RTX? It would be insane to
adapt the game engine to accommodate less than 1% of the market.
“Between December 2018 and January 2019, the RTX 2070 jumped about .16 percent in usage, bringing the total reported number of systems with that GPU to .33 percent. The RTX 2070 is the most popular out of the three RTX cards; the 2080's usage was reported at .31 percent, and the 2080 Ti at just .15 percent.” -PC Gamer
Expect something similar with the adoption of these new cards. 4k only requires user to toggle their resolution. More gamers will be capable of that and it doesn’t require a change to the game that hasn’t already been made.
Before anyone says it doesn’t make a difference, I guarantee you on a good 50” display it does. And a larger screen makes everything more cinematic and clear. I’ve been playing Crusader Kings iii on a 49” @4k and the text and smallest details on characters faces are crystal clear. It doesn’t just look better, it is functionally better. The game plays better at 4K because I can be zoomed out and, for example, see the name of every duchy. That wouldn’t be possible otherwise.
Total War would similarly benefit from 4K because of the many, many small units on a large scale map.
In Bannerlord, the difference 4K @ 60 would make is being able to see each blade of grass an arrows flying. Each troop from a far distance would be clear.
I think the goal for Bannerlord be 60fps @4k before they add or remake the game engine they haven’t finished. 4k should be the new standard since 20% of console gamers will already be there 6 months from now. Let’s see that 4K usage rise to 10% before TW even consider RTX. Let’s wait for more than 5% to have a PC capable of ray tracing.