10 years out?
Probably not a lot different to today. I doubt any type of remote terminal (the kids call it cloud these days) gaming will be dominant as I doubt people will be investing in cabinet or exchange level hosting which is about the only way I see that working for real time.
Graphics will be slightly better but probably not too radically at the higher end, though even mid tier devs will be doing what is high end today. I would probably say go look at what film studios and CGI houses are doing today*, possibly also timelines for opengl and directX, and basically that. To abuse an old phrase then VR is 10 years out and always will be. I hope we will get proper motion blur. Resolution kind of tails off in usefulness (the average living room + average human eyeball... even 4k is a stretch for some setups) so I don't know if 8K will be a thing, hopefully we get some nice ultrawide screens instead. It might be time for 3d again by then. I don't know what will become of silly high frame rates.
*the Rebirth thing is probably a good example of this
Where today that is something akin to renderfarm then if something like Moore's law holds or gets something to replace it then I can see that being real time around then.
I imagine we will be starting to see the AI generation of quests, map areas, voices... be really taking hold. Possibly also making things a bit more dynamic, though I also can see some actor type stuff going there (I was reading the other day about Fallout 76 being so bad that some people were setting themselves up as a kind of end boss, and internet played versions of pen and paper RPGs are becoming quite widespread -- hard not to imagine something happening there). Hard not to imagine the more sandbox type elements such a thing would require not themselves being twisted to make for some serious user driven modes.
By similar token I imagine a bit more destructible environments and games playing to that, coupled with the above that might make for some good persistent changes in various online games.
I am not sure what the DLC and microtransactions path will be here, though obviously I hope it does not become all encompassing. I imagine someone will crack AR and microtransactions to make something very odd. Though I suspect we will see devs have to learn the "people like good games" lesson a few more times during this, and a run of stupidity will probably be terminal for a popular company today. By similar token I am not sure what the next bold move from Tencent will be but some kind of major upset there will likely happen.
We will probably also be seeing the effects of minecraft as the game the kids grew up on compared to mario when it comes to what people are making -- if programmers program everything in their first language then game designers tend to incorporate lessons from theirs. I don't know if we will be seeing more formal/scientific game design teaching take hold (if I compare the sorts of teaching I am seeing for game design to what we see in film school then it is so far behind that it is not funny) but I can see it, and indeed hope for it -- if some game dev can tell me the maths behind the prisoner dilemma and other such game theory games rather than blindly trial and error fumbling their way to it like we see today and have done for years now then that will make for some interesting games. That said if film schools already teach what should be good stuff and we still get the utter drivel that infests the landscape...
I doubt we will have a controller breakthrough in that time, though maybe at that point we will be seeing the first rumblings of electroactive polymers allowing some kind of dynamically reconfigurable controller (some kind of touchscreen overlay tech probably at around 8 years, and shape formed stuff* possibly a bit sooner still). Maybe in the silly high end (think the room in my house for VR types today) we might see some kind of AI driven finger tracking.
*if 3d printers take off then something interesting might happen there as people can get their own stuff printed on demand as it were compared to plastic instruments of yesteryear's guitar hero and rock band.
I am not sure where mod making and open source gaming will be. That will probably depend upon what sort of AI the public gets to play with.