Man I would not do a new build until at least late 2020 when the new consoles are either out or there is rock solid information about what kind of cpus they'll be using. Most games are always going to be programmed towards the lowest common denominator, so it makes sense to see what that is first to be able to properly exploit those console weaknesses in your build. Plus RAM prices are ridiculous right now and Intel is still having getting to 10 nm. It's about the worst possible time to do a new build IMO. Though one ray of hope at least is Samsung is claiming they're able to produce 1TB, 2TB, and 4TB QLC SSDs cheaply enough that they'll be consumer level SSDs and not enthusiast level products when they launch late this year.