You might disagree, but I see more innovation nowadays in shooters/action games than I see with, say RPGs.
The great thing about shooters/action games is that they're so...mallable. Mix in RPG elements, make it semi-open world (Fallout 3 anyone?), put in conversation wheels and what not, people are still gonna love it because at it's core, it's visceral combat and great immersive (I know people hate that word) atmosphere. What's not to love?
You can present a world much better within that genre than, say a top-down strategy game.
Even Bioware realised that a long time ago, and see how they're thriving.
Hope it isn't too late for Obsidian to realise this FACT. Well, Fallout NV should have opened their eyes.