When they found out about Ali's heart condition, I thought to myself "There's about a negative 20 % chance ( no chance, really) that anything would happen other than her coming out fine and on the mend. It would just be so out of character for this show to actually kill her off.
I'm a little disappointed that that's all we got at the end with regards to the GA, but then I really didn't expect an answer as to who's doing it. I was hoping, but was pretty sure it would be another lead that went no where. Because, at this point, what can they say ? I can't really believe that any human being, no matter how smart or tech savvy there were, could possibly have all that knowledge to be able to connect things like they did. And if the show had said it was God, I suspect most people wouldn't like that either. They kind of painted themselves into a corner, unless you just accept the premise as helping people just to be helping, without asking the deeper question. So I guess that's how it's going to have to be.
I wonder, though, if anything had been written for the new season ? I wonder who "she" was going to be ?