Regula's dying words pretty much confirmed that Emperor Varis would likely have need of the Warrior of Light, so an alliance between Garlemald and the Warrior of Light isn't too far-fetched - and should, ideally, be the end game anyway for the sake of peace, prosperity and pooling resources together. It seems clear, at least, that the Emperor does not appear inclined to crush Doma and Ala Mhigo which is a step in the right direction as far as foreign policies are concerned.