For real. JC Denton was intentionally made bland. I remember an interview with Warren Spector where he said he would actually tell the voice actor to do his lines with less emotion. (They were trying to make it so that he could sound "neutral" in a way, allowing you to sort of insert your own opinions into his voice acting.)
I'm pretty skeptical about bringing Jensen back, along with the Crysis-like weapon customization. I need more info to sell me on this; Human Revolution was great, but it had some problems such as combat XP and the poor endings. I want to see how this game will handle those endings.
It's rather interesting that this DX will be using a version of IOI Glacier engine instead of using tech from Crystal Dynamics as HR did. That would make it a fourth completely separate engine to be used to build a Deus Ex game:
Deux Ex - Unreal Engine 1
Invisible War - modified Unreal Engine 2
Human Revolution - modified Crystal Engine
The Fall - Unity
Mankind Divided - Dawn Engine (modified Glacier 2 Engine)
The screens look great but also bullshotty and it's a surprise to see Jensen back (albeit a pleasant one). If all we get is DE:HR set in new locations but with good boss fights then I'll be very happy but I'm expecting much more. I can't wait!