https://www.techpowerup.com/302680/alienware-500-hz-gaming-monitor-leaks-ahead-of-ces-reveal
 
Based on a leak on Twitter, Alienware is planning on announcing a 500 Hz capable gaming monitor at CES. According to the leaker, the new monitor will carry the AW2524AH model name, suggesting it's a 25-inch monitor. The general tech specs aren't likely to impress most people, as the display panel is as one would expect, only a 1080p panel, although it's at least a fast IPS panel rather than a TN panel.

The AW2524H delivers 480 Hz natively over DP, but has an OC setting which makes it reach 500 Hz. Based on the leaked picture of the rear of the display, it'll have some RGB elements, as well as a height adjustable stand, which most likely also allows the display to be rotated. The leaker didn't provide any kind of pricing, but expect this one to be a very expensive 1080p display.
 
Personally I think Alienware is on the wrong track with producing what gaming customers want. 
 

I agree why make a 500hz 1080p monitor? At that speed even LAN gaming is going to have more lag than the screen refresh. A 1440p monitor at 240hz would in a lot of ways make more sense since if lag is above 4.5ms it would be the same as playing on this monitor for rendering new frames but each frame rendered would have additional pixels with the 1440p making it easier to spot enemies in game.