I like this character. For once it's not another generic bishonen character. Being a JoJo's Bizarre Adventure fan, this has me pumped. He does give off that Gabriel/Simon/Julius bit... Aesthetic wise, Gabriel but I think this Character is... Julius Belmont. He is a demon hunter and Miriam may have those powers and he ends up fighting her ala AoS style only to be shown mercy perhaps... but that's just my take.
In all honesty, sure LoS was a disappoint with some good things, but I've nothing against Gabriel Belmont. He was a nice character but he was an understatement as The Prince of Darkness.
They should change his pants colour to be black. I never loved that Santa Belmont shit though...