So. The Vizard are entering things. We have no idea where they fall on the scale, but the fact that Vizard!Shinji completely wrecked Grimmjow's shit implies that as a group they could at least match the Espada.
...either that, or the lot of them could OBLITERATE what's left of the Gotei 13, Yama, Kyoraku and Ukitake not withstanding, while Aizen, Gin, Tousen and the Espada deal with those three.
And Ichigo's just gonna get wrecked by Ulquiorra again, so...one of three things will happen.
Bullshit Resolve Powerup (sadly, the most likely)
Ichigo/Grimmjow/Kenpachi/Byakuya all take Ulq on AT FUCKING ONCE.
Unohana vs. Ulquiorra
Out of the latter two, I still haven't figured out which is more awesome.