Really, GR as a herald of Galactus, while cool, makes little sense. If he is like most versions that he is to avenge the innocent.
Seems like leading Galactus to worlds to feed on would end many innocents and violate his purpose. I feel that his powers would be stripped from him. Galactus could basically recreate them but it just does not make a ton of sense to me.
I guess we're gonna find out about all that in the next issue.
Also, I'm not really sure how to feel about Galactus waving around a giant gun, ammo on his chest and some old cape around his neck...
Maybe Thanos stole the power cosmic from him? Look at his fist glowing on the cover.
Or maybe Frank just rubbed off on him.