Given that I haven't been pummelled with email about how Blogger is going to become "Google + compliant" I'm guessing that the answer is "No, they won't kill your blog." And they won't charge your credit card. And next spring they will announce that Blogger is being shut down and you can move your Blog over to your own Google+ page! And then you will get to decide what you want to do next.
But that is just a theory, my experience of late is that when Google stops talking about a service, and responses stop coming back, the reason is that the service is on the list to be killed off and anyone inside Google that was working on it, already knows that, and have already transferred to some other project.
But that is just a theory, my experience of late is that when Google stops talking about a service, and responses stop coming back, the reason is that the service is on the list to be killed off and anyone inside Google that was working on it, already knows that, and have already transferred to some other project.