No, you cannot change the name of the package unless you are ready to publish it as a new application on the Play Store:
Once your application is published under its manifest package name, this is the application’s unique identifier forever. Switching to another name results in a completely new application that cannot be installed as an update to an existing application. The Android manual also confirms this here:
Attention: after publishing the application, you cannot change the name of the package. The package name determines the identifier of your application, so if you change it, it is considered another application, and users of the previous version cannot upgrade to the new version. If you agree with the publication of a new version of your application as a completely new entity, you can do this, of course, just remove the old application from the Play Store (if you want) and publish the new one with a different package name.
Rahul Sethi Jan 04 '17 at 21:19 on 2017-01-04 21:19
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