For better or worse, Gears of War looks like... more Gears. People who like the franchise will love it, but I don't think it will attract new players, let alone sell more consoles.
Clockwork, as interesting as it looks, I can't see that game being a system seller, looks like Dishonored combined with Bioshock Infinite, but I doubt it will do anything better than those, not even sell better.
This is just so weird, but I guess we'll have to wait and see what happens, for all I know this is just their last attempt to go back to how things were and if this doesn't move the needle they'll backtrack again.