Google Home could invade my home

Yes, I'm waiting for Google Home. On that system I will extend my home. Probably with Hue lights, switchable power outlets, and as the final step, door locks.
That's what I want. And Google has a hard time to fulfill this, because it's all fragmented.

Without a central hub like Google Home that can connect with all the appliances, the whole system is senseless.

Maybe this is something big. The rumored specs of the Pixel phones are not.