Lol, has anyone noticed, this is very against Valve's character?
The first Left 4 Dead was built in three months, then underwent
three years of playtesting to perfection. Half Life 2 took 6 years to make, the episodes roughly 2 years each, and episode three is still vapourware 2 years after episode two was released...
If they're starting to turn games over in a year, which is quick even by other game design teams' standards, will they lose that highly-polished sheen that comes from them playtesting and improving the heck out of it for years? If so, it may be a disappointing rehash of the original, and if this reflects Valve's new game design attitude, then maybe Episode Three will fail too?
"Give a man a fish, and he'll eat for a day. Give a man a fishing rod, and he'll break it up into firewood...or swap it for a fish."
-Frankie Boyle, on Mock the Week