Candor said:
I've been wondering about these pages in addition to a sketch from repeat & reboot I can't find now (a guy with spiky hair's sketch). The first guy your post looks like a Quincy, Hiyori smelled a Shinigami, so I'm not sure it's the same guy, but one of these 2 (if they're not the same person) is probably the one who attacked Kirge, since as I mentioned previously opening a Garaganta is not simple and few are those who know how to open one.
About Bach's theory, I think I'll put it aside for now since there are still some mysteries and I'll think of the original Juha Bach as a person or just a mystery until we get further plot-points. As many people mentioned, the blondie will be the one to take control of things for now, he's not a normal subordinate after-all.
Agreed on the Juha part. I'd just like to point out one final thing. Juha has been incredibly hyped by Kubo (you know lots of color pages, flashy entrances and such) so I think that he aint gonna be pushed aside so easily. ALSO, I would like to say, in regards to the identity of the mysterious man in the begining chapters,
that we mustn't necessarilly suspect anyone and everyone as a candidate for the boss of the sternritters. May I remind you that it is HIGHLY possible that a THIRD party will be heavily involved (and I ain't talking about HM). And besides the RG we might as well consider rogue quincies who don't belong anywhere(why assume that Ishida and his dad are the only ones?)