She cried? I don't remember that happening. But yeah, as much as I love Ulquiorra(Who was by far one of my favorite characters in Bleach), and as much as I would like to see him again, I can't see it happening. I mean, he served his purpose. And villians (almost) always die in the end.
*SPOILERS*
Besides, Aizen is defeated and all the Espada are dead (with the possible exception of Grimmjow and Nel). Where would he go? What would he do? He can't go to soul soceity, for he is a hollow. Not to mention, the new arc is all about the Fullbringers. And from what I've seen, it looks like they are pretty much going to replace the hollows as the baddies from now on.