Hard to say. I bet it outsells Canelo/Angulo, but there are a lot of PPV fights coming up so that makes it hard to judge.
Although GGG comes forward routinely, he's got a countering style. He's a pressure counterpuncher. Chavez winging a ton of shots while Golovkins in front of him is exactly what Gennady wants. And as much as people mention Junior's chin, its his ribs we'll find out about come fight night.
GGG can fight and punch off the back foot. I've seen evidence of it in a few fights and in amateur fights, but I'll give you that he doesn't do it a lot. Because GGG has exemplary punching technique and uses 100% rotational torque, he doesn't need his body weight moving forward for power, unlike some guys with power (e.g. Angulo). This allows him to have the same power forwards, backwards, or stationary. I don't foresee some backwards movement here and there causing him to lose this fight.
that sparring video doesn't prove ****...that was ggg's first round vs chavez's 7th round....and even then, both were just in there feeling each other out....if anything, when faced with it, speed will give jr problems again, not a come forward pressure fighter who's the next kid diamond.....chavez jr's gonna **** ggg