G+ is going away but it's not going alone, it will impact a lot of thing negatively for a while for Bloggers on platform. Read details below:

Google+ widgets: Support for the “+1 Button”, “Google+ Followers” and “Google+ Badge” widgets in Layout will no longer be available. All instances of these widgets will be removed from all blogs.
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+1 buttons: The +1/G+ buttons and Google+ share links below blog posts and in the navigation bar will be removed including our painting with diamond group (Diamond Arts).
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An update on Google+ and Blogger