This concern is primarily due to the changes made to the series in Deus Ex: Invisible War where many of the RPG elements had been removed from the first title. We recently addressed the issue of whether Deus Ex: Human Revolution would be simplified with Art Director, Jonathan Jacques-Belletête, to which he responded:
From the heavy emphasis on the four pillars of gameplay to the morale issues of transhumanism, Eidos Montreal seems intent on making DX:HR a hardcore RPG experience. Look for our full interview with Jonathan Jacques-Belletête later this week where we discuss what we can expect from protagonist Adam Jensen, the plans for DLC, and the potential future of the franchise.
Deus Ex: Human Revolution releases for the PC, PlayStation 3, and Xbox 360 on August 23, 2011.