The 2008 IntoThePixel E3 art gallery has some concept art for Valve's Half-Life 2: Episode 3, although sources tell us there won't be any Half-Life action at E3 as Valve is focused on pushing Left 4 Dead.
The IntoThePixel web site lists the platforms for the supposed final installment as PC, Xbox 360, and PlayStation 3. The game does not have a release date yet.
shacknews.com: First Half-Life 2: Episode Three Concept Art Revealed
'Half-Life 2: Episode 3' Concept Art Found
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