I dunno, he was moving around well for a guy stabbed in each side but I do think he's gone.
After watching it again, I am satisfied with her death because the smirk was replaced with true emotion and the realization that she was going to die and the harsh reality that her line would not move on.
But with what I've seen so far, I am still not 100% sure she's dead. Need to see a body and I think Tyrion will find them because they will want to make sure she didn't escape while Dany was wasting all that time cooking innocent people. Mother of Dragons? What an irresponsible parent.