What I didn't foresee in 2005 was the rise of the post-PC, which are all these tablets now. These are the things that actually will probably be the end of the consoles.
You have to design and program differently. Combat action in an MMO is so different to combat in a first-person shooter.
I completely love playing and designing games and always will. I am so into games that I listen to game music all day. That may sound strange, but you can guarantee I'm a hardcore gamer and would never let you down by designing a crappy title.
I think DOOM had just the right mix of elements that keep people coming back to it: great monsters, excellent weapons with great balance, a spooky environment and extreme speed.
You want stealth? Be a rogue in 'World of Warcraft'.
The analogy I use is that 'World of Warcraft' is like going to the mall: you see a ton of people there, but you don't really want to interact with them; you just want to know you're part of the human race. And if you get in trouble, you'll know someone else is there.