Can I just say that I'm feeling copious amounts of ambivalence! Not for the reason anyone's stated. No, my reasons are pretty unique to just me. Hear me out.
The good aspect; Hoooly hell! Holy hell hooly holy h'ly HELL, Deus Ex 3, yes yes yes yes yes. XD *AHEM* ... I'm excited.
I'm a giant fan of Cyberpunk as a setting, and very few movies or games really make good use of it. Deus Ex 1 was one of the better ones that didn't lean on the settings style as a cyberpunk setting, but had liberal applications of story plot and intrigue to go along with it. It's truly a marvel, a treat, and a privilege to see this game come to life.
The bad aspect; I mentioned above I'm a giant fan of Cyberpunk as a genre. Much of what I love about cyberpunk comes in bits and pieces over a multitude of movies, games, and books. But no one's gone through the trouble of tying these things together. Keep this thought in mind as you read on.
I'm a designer, a writer, and a comic book artist. I've been, for years, writing loose scripts, ideas, plots, characters, themes, concepts-- ALL in the hopes to one day release my magnum opus of a comic. A cyberpunk comic that took all these themes of cyberpunk that I loved, and make a story campain that utilized them in a way to excite joy in readers. Since, as far as I know, I would be the first to release media with all these themes together, I was hopeful that this could do really well-- and it still can. Nothing has really diminished that. Deus Ex 3 seems to-- judging by the trailer, tying these themes together to tell its cyberpunk story, and I am extremely jealous.
Don;t get me wrong. I'm happy to get to play another cyberpunk game. One that takes all my favorite themes of a cyberpunk story, and weaves them together. One we can all share a part of enjoying. Oh yes. I'm absolutely excited and over joyed by this!
But at the same time, jealous that I was beaten to the punch.