I'm not much smarter than anyone else, so sorry if I come across that way
but look at it like this: if they make a new more powerful console, it erally won't look that much better without a better TV technology, and then people will wonder why they need to buy it. If a game displays in 1080 and the TV does too, then the console is delivering one dot of graphics info for every dot the TV can display.
so why create a new console generation? Of course, the remaining thing they could do without providing higher res images is to simply include more detail in the images.
a GT example would be more cars on the track, evne if the res doesn't change. Instead of 16, we could have 32.
But then there's the issue of network infastructure allowing so many players to engage in racing together.
But just imagine like 32 Tuna going around the Nurburgring together? That would be awesome!
Multi-class races would actually be interesting, as you'll have plenty of competitors for each class on the track at once.
But hopefully the new console allows higher resolution pictures AND the ability to add a lot of complexity to the games too!