[Mushiro]

Originally Posted by Darth Kenshin

new spoiler gives some clarification about the "huge mass"

Spoiler: Huge Monster

"While they are fighting Wonderweiss appears, bringing along some huge creature. Its nails are all menos masks, and it has one eye."

Looks like my first guess was right, and it's the thing that was in the Garganta when Aizen escaped

Now the question is, who's gonna help? Wonderweiss, Stark, and now this dude... it's probably too much even for Kyoraku and Ukitake to handle. Maybe Urahara comes along to finish his business with Wonderweiss? Could also be the Vizards... if the Vizards were going to help any Shinigami, it would probably be decent guys like Kyoraku and Ukitake. But I still don't think the Vizards are coming. Maybe Yama will help out his "sons," or maybe Kyoraku and Ukitake are just so beastly, the handle all 3 on their own.

EDIT:

Spoiler: Chapter Name

Superchunky From Hell

Question is, is that just a name (like "the mother-in-law from hell"), or is this character actually from Hell, meaning Aizen's influence expands beyond Hueco Mundo

Wow, good find. I always wondered wtf that thing was when Aizen left to Hueco Mundo, guess we finally get to find out. I always figured it was a refractory effect, because when Grimmjow was in a Garganta once, he appeared much larger than he really was.

Here's the only clear image of the creature in the manga, the eye never opened in the manga:

Whatever it is, it's massive. Even larger than a Menos Grande... wtf is it? Now I'm dying to see not this weeks chapter, but the chpater in 2 weeks. Finally some excitement!