It should overshadow it. Detroit is a much smaller profile game and it’s a David Cage game.
I would think it would be bad for GoW if it didn’t overshadow it. By that I mean for GoW to not overshadow it, GoW would have had to have been a disappointing game. Luckily that is not the case. People will still be playing and talking GoW next month when Detroit launches, and that’s a good thing.