taking from what I did on BA instead of re typing it all
as for the end of this fight I think what is going to happen is I think all of the well hero's (grimmjow for some reason as well and hopefully and adult nel tu) and from there they will spit up into groups of 2 or 3 and continue the fight from there.
If they do that ichis team(ichigo,nel tu,hime,grimmjow maybe pe and don) will end up finding ulquiorra
chads group will find old man (chad,unohana,isane and Gantenbainne)
ishada group will find halibel (ishada,mayuri and nemu)
and rukia's group (witch would probably be with her bro,renji and that healer who's blade does nothing but heal forgot his name) I think that team will be beat and I think they will end up finding stark and possibly yammy for some reason will be there.
keni's group will find tousen I think
and aizen and gin will be waiting in the wing
now out of these I think rukia's group will be beat and tousen will be beat the others I think the old guy might die.
but I think hime would not let ulquiorra die
and halibel I think will just escape.
When they end up going back to hueco mundo I see Gatenbein,grimmjow,nel tu,Dondo and Peshe returning with them out of all of them the only ones I can see dieing off is dondo and peshe but those are the ones I can see going back to SS
I wrote this on BA but this is my opinion on what will happen.