Im sure those new SSD hardware wont be cheap. And you need a new GPU and CPU. I fear my next rig will cost around 3k. https://www.anandtech.com/show/15352/ces-2020-samsung-980-pro-pcie-40-ssd-makes-an-appearance
Since the Xbox 360 artists have been putting insane amounts of detail into games, the Gears of War 3 art dump always comes to mind (https://polycount.com/discussion/159588/kevin-johnstone-of-epic-games). I don't think too much detail is actually a problem, the detail is already there, we might have to apply it differently…