Yes, you'll be able to use the IDE to generate the installers of your NetBeans Platform applications.
After making a selection in the above dialog, you'll right-click on the application's project node in the Projects window and then choose this menu item:
And then, after a few moments, you'll have a new installer ready to be distributed to your end users:
The installer is created on the same infrastructure as the installer used by NetBeans IDE, so you'll not be surprised at the result:
In the end, your users will have your application installed via this installer generated by NetBeans IDE.
The one remaining question I have is to what extent the installer can be customized—can the icon be changed, can the text be modified, can additional panels be added to the generated installer? Hoping to find out soon.