I significantly doubt it. It's ubiquitous internally. It's a major selling point of GSuite. It'll likely remain one of Google's biggest ad-serving faces outside

I significantly doubt it. It's ubiquitous internally. It's a major selling point of GSuite. It'll likely remain one of Google's biggest ad-serving faces outside of Search. They may get rid of one of their applications (gmail OR inbox), but I doubt they'd get rid of the entire platform. They'd lose more revenue than they'd recover.