There are some guys that like 2m^2 pixels. 4k screen make lot of sense as we can already have 3K screens on much smaller phones. We just need more products like this with high resolution screens released asap, and become mainstream.
The Aorus X5 will not be even slightly out-dated by Q2 of 2015. The X7 Pro isn't anywhere near outdated yet, so why would the X5 become outdated. I defiantly think the X5 has got enough 'power' to run all the games I've heard about that are set to be released this year. I agree that 4K may not be overly useful on a 15" Screen, but I like that the X5 will have the ability to output to a 4K monitor.
Why? The graphics card is brand new, they will probably add Broadwell processors by then and everything should be fine. What seems ridiculous to me is that they put 4K pixels in a 15-inch display.