Unity Splash Screen after subscription ends

If I subscribe to Unity PRO and Unity iOS Pro and release an app with my custom Splash screen and decide not to continue the subscription after 1 year, would the custom splash screen of the released app switched to Unity Splash Screen? Or would it stays as it is?

I am not going to update the app after the subscription ends.

The app will remain unchanged. The app doesn’t know the end date of your serial number.