StarGate produce great ballads and mid-tempos too though. They were able to adapt to the "current" sound throughout the years so I don't see why they can't do it with this mega collaboration! The song is in good hands producers-wise.
True with StarGate behind it I'm sure it will be radio friendly with a mass appeal.
StarGate is not involved people. They usually share writing credits on the song they produced. They aren't on the list of songwriters according to the ASCAP tea.