At this stage, it is difficult to say what the app will look like. All we have at the moment is a shortcut that opens up a blank page and a ‘Cubes entry point widget’. That said, both the shortcut and the widget are part of the Play Store app.
My assumption is that Cubes will be the kind of ‘entertainment center’ where purchased movies, games and books will be stored. I might be wrong, though.
Google plans to split the “Language & input” settings page into two separate “Languages” and “Keyboard” pages. The first item will include the System and App languages settings.
The second one will include all the other settings. This change is hidden behind the settings_new_keyboard_ui feature flag.