I Have found a working fix for this issue. Though a bit of a work around.
Open the settings app and change users from there to guest user, you should regain your notifications panel, (your home button may still not work)
Then delete guest user from notifications and switch back to your main user account.
If your home button still does not work properly, enable usb debugging and connect to your pc
You need to run these commands in ADB prompt from windows:
adb shell
su root
am start -n com.google.android.setupwizard/.SetupWizardTestActivity
Your Adb Console should look like this:
you should now see the new phone setup wizard, once you finish going through the process all your apps and everything will still be there and your home button should work once again.
I do not know why but running these commands as a regular user did not start the setup activity for me. You may be able to try just running it as a regular user if you do not have root:
adb shell
am start -n com.google.android.setupwizard/.SetupWizardTestActivity
But your mileage may vary.