"...next high-resolution 4K and 8K gaming panels..."
As the one of the very few people who has run 4K, 4K Surround, and now 5K, I simply cannot wait for 32GB VRAM, 4-Way SLI (is 8-Way SLI possible?) with a beautiful 8K gaming monitor!
That is astoundingly jaw-dropping just to see in words! Can only imagine it in real life!
In the meantime, something to tide us through: 5K Gaming
Dude that is a sweet system(s) you've got there. Out of curiosity how do you find the two Classifieds compare to 2 (or more) Titan X's at 4K? Also, you should look into putting your cards under water cooling if you aren't already.