Even 2016 is optimistic considering L4D3 is all but confirmed to be Valve's next release.
If that was true, why is NeoGAF still up and running?!
And who knows when that is coming out...
2015 is a distinct possibility assuming Valve has settled on an iteration (i.e. there's not going to be a repeat of Portal 2: F-STOP Edition -> Portal 2: Portal Edition).
Guys, The Last Guardian is also getting released this year!
http://www.webhallen.com/se-sv/spel/playstation_4/170494-the_last_guardian&atcl=search:live
Settling on a version is one thing, but imo bringing Dota to source 2 is their priority for this year. They can't mess that up. And until it works properly they might not announce a proper Source 2 game. But this is just a guess.
No Wii U version?
Guys, The Last Guardian is also getting released this year!
http://www.webhallen.com/se-sv/spel/playstation_4/170494-the_last_guardian&atcl=search:live
maybe if we all preorder it, valve will get the message and get the many thousands of their employees currently only making hats for their various games to actually get a move on with making half-life 3
That hurts.Pre-Order now to get early access to the StarCraft: Ghost beta!
I wouldn't think there's much overlap there outside of perhaps some programmers, but obviously it's impossible to be certain to any degree.