M.Net's Denis Talbot displays a picture purported to be the first concept piece revealed of Deux Ex 3. It is stated Stéphane D'Astou revealed this on the M.Net show as a part of the developer's visit to the studios. David Anfossi, the project producer, is quoted as stating "These concepts help out artist to see the right spirit that we want to achieve in Deus Ex 3. (...) We appealed to the original designers of the previous iterations to better understand the direction to take."
Apropos, see the concept art
here. Looks like the DX1 lab.
Unconfirmed: Deus Ex 3 Concept Art 
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