I think that even after that special training its still far to the end, cos they still have to get into hueco mundo then surely fight all of the arrancars, ulquiorra, gin, tousen and maybe then aizen if nothing else happens, and i would guess that aizen its gonna run away when he finds himself alone (or maybe with gin and tousen).
btw in the last weeks i saw Gungrave and i liked it (its just 26 episodes), then i started watching Death Note, at least its original ^^ and they have shinigamis aswell heh.
i loved the first intro theme song episode 1-19 the one it has now kinda sucks >_<, i always skip the intro now hehehe, i already watched the 32 episodes now to wait... argh