What happens to Grimmjow in Bleach?
Well you should just stick with that fact that his current condition is unknown. We can’t say he died, even thought we’ve seen him critically injured, because we’ve haven’t seen him dying. He was a given a proper ending like all the other Espadas, and Kubo won’t just kill such a popular character without a proper ending. But we can’t say he’s defientely alive either, because Grimmjow has not been seen since he got hit by Nnoitra. So it’s hard to say whether he’s alive or dead, but the most likely scenario is that he’s still alive and got healed up by Unohana taichou, since she’s healing both shinigami and arrancar.