Is GMAIL going to go away?
For sure. Not to be replaced by a different email address. But because email is being replaced by a variety of better and problem specific technologies. For example once teams use Slack, they never go back to email for internal use.
Is search going to go away?
Yahoo, Lycos, Webcrawler, they all had their time at the top, before being replaced by something better.
What about google drive? That's a for-pay system (the 100 gigs for $2 a month) is that going away?
The cloud is highly competitive, and Google is not the market leader. Amazon is.
Because people have been saying Microsoft is dead - for years now.
And they're right. Sure they're still trading, but they are a shadow of the titan that used to lead the industry where-ever it wanted.
And how about Nokia. Again, still trading. But having sold off the handset business that was the only part of the company most people had heard of. Industry titan a decade ago, now nothing.
Somehow I think the core of google is going to be around for a long time.
Don't think anybody's disagreeing with that. It just that it's started on a journey into irrelevance.