The game mechanics will be measured against titles as BG, IW:D and PS:T. I'm crossing fingers that it won't get dumbed down for some reasons (money, time, whatever).
Just thinking about Wasteland 2 combat which turned out lacking compared to Fallout and JA 2, the simplistic system in Shadowrun Returns or MMX. So far none of the allegedly oldschool-like titles delivered what they promised.