Dota 2 Mod Tools Hint at Source Engine 2
A recent update to Dota 2 introduced an updated version of the Hammer map editor from Valve, but it could be the first steps toward something more. While mapmakers are hard at work on custom maps and game modes, other users have begun to dig deeper and have found a number of interesting pieces of information. A number of dll files have been added with the number two in them in addition to the ability to specify saving a map as a Source 1.0 Map File or Valve Map File. Reddit user RoyAwesome has been compiling a list of more signs pointing to Source Engine 2, including potential references to Left 4 Dead 3 and Counter-Strike 2. A new Source Engine would be big news in the PC gaming community and is something that I will be watching closely.
Source: PC Gamer