If you think about it, the graphics you are getting now with your JX will be the same quality you get always. Some of the games in the future, however, will be able to get more impressive graphics. Which is why some newer games you will not be able to max settings on.
Also going into buying a gaming laptop you should know that it would not out preform a pc or even some consoles. The laptop is mostly for people who move around a lot and need, basically, a portable desktop.
ASUS G750JX
CPU: Intel Quad Core I7-4700HQ @ 3.4GHz
GPU: Nvidia GeForce GTX 770M @ 932Mhz
RAM: 16GB
Memory: 1TB + 256GB SSD
OS: Windows 8