Hard to bet against Hassabis + Google's resources. This is in their wheelhouse, and it's eating their search business and refactoring their cloud business. G+ seemed like a way to get more people to Google for login and tracking.
Thats pretty telling that on the search's / ad placement on the web where it matters, OAI has had no impact or its muted and offset by continued market power / increased demand for Google's ad-space on the web.
