Board Thread:General Discussion/@comment-10451197-20130605053202/@comment-6935068-20130709034919

Grimmjow is possibly alive, after Ichigo blocked Nnoitra's attack to Grimmjow, he was never seen again. It was never stated that Grimmjow is dead, so he's possibly alive and well. The one who surprise-attacked Urahara is possibly him, Yammy couldn't move as fast as that attacker.

I'm not sure about Yammy, as his final scene was talking to a Hollow Dog. Then Yammy put his arms on the ground like a dead person, I'm not sure though.

As for Tia Halibel, even though she was slashed by Aizen, she is still alive, and was the acting ruler of Hueco Mundo until Yhwach (You know, Juha Bach) imprisoned her.

The other Espadas are dead though.