Dust2, according to official statement to be tested in next CS: GO beta release.
Home of a thousand frags, Dust II is probably the series' most played map, and if you're watching a frag-video and it's got sand in the background it's probably this video, or one like it. In the announcement, Valve hopes that the open-beta testing will help "improve player readability throughout the map", "refine movement around the world including cover", and "upgrade the visuals to be in line with modern maps". The latest CS: GO update rolled out last week (October 5) but it did not bring any considerable changes. The iconic map has been part of the competitive Counter-Strike scene for over 16 years since it first released in March 2001 as a free addition to Counter-Strike 1.1. The map preview teased new map textures, a color change to the skybox as well as green palm trees, blue tent sits, and a painting of dusty concrete buildings. Bomb site A is changed to remove drain pipes so players can peek around corners more easily. The map is lighter and brighter throughout, and Valve has removed a series of dark spots where players could camp. "Annoying physics based detritus props have also been replaced with more predictable static prop detail such as weeds and rocks". The Leet Krew terrorists have been overhauled to match the map's visual upgrade.