Those character designs, somebody's been reading One Piece. ha. I like them although it's totally not what I expected. I wonder if these are the people shown in that panel..
Darker haired chick looks as if she could be from Suì-Feng's clan.
As for their late arrival, it's acceptable they couldn't be there for the invasion considering they could have been miles away but they certainly should have helped with Aizen.
Those quirky looking guys>5 generic "badass" looking guys any day.