Although you might have seen it already, here's a great picture of 2013's biggest releases, divided by their console/PC debuts, from internet user KingNL. This picture just encompasses releases on consoles and PC -- no portables involved.
Right now, 2013 is looking like a great year for multiplatform convergence, and PC games in general. Just look at the staggering amount of PC games already announced for this year.
Of course, we'll most likely see many more exclusives on the 360, PS3, and Nintendo side of things this E3, but as it stands, it's a great time to be a PC gamer, and PC gaming in general is far from "dead."