Here they are side by side for comparison:
|Naver homepage, Before (L) and After (R)|
And here they are up-close, as seen on 2017-3-24:
|Naver new style homepage, to launch 3/27|
|current Naver homepage|
Looks nice and sleek. I like the soft gray background and offset center.
By the way, this preview version has actually been available since March 13, but I only noticed the message yesterday.