It won't be a new Dual Shock. The Dual Shock is the defacto and it always will be. This will be a component that can be used for a variety of games.
Indeed, even when we question Koller as to whether or not we could expect a PS3 motion controller bundle at its release, he hedged, explaining that bundling motion with every PS3 "might not make sense."
In other words, motion controls may be in the PS3's future, but they aren't the future of the PS3—a somewhat different perspective than Microsoft has of their motion control peripheral, Project Natal.