Wow what a cliffhanger, indeed! Smell teased on his twitter "it's been a good run". I definitely think they will use a Lazarus Pit, and his buddy from Hong Kong is the one retrieving his body. Remains to be seen whether any of the side effects, shall we say, that are known in comics, affects Ollie in this show.
Well so I was wrong about Sara's killer. Dang it. I'm not sure I like the brainwashed twist though. Wouldn't it have been better for Merlyn to have sent Thea to kill "the Canary" and she didn't know who it really was? What an interesting story line for Thea to realize what she did when she saw Laurel at the cemetery, and now she has to live with it. I don't know...just thinking aloud. Brainwash is one of those copiously used story elements that's getting a little tired.
Like some posters above said, I was a little surprised--but unaffected--by the blood spurts on Ollie's arm and with the stab. Speaking of that fight, there were some good lines. Ra's saying he'd just take Ollie's weapons when he was through with them and kill him with them. Nissa saying she was envious of Ollie for going to see Sara (in death) first. Geez!
I still remain sad how underutilized Parkour-Man--I mean Arsenal--is this season.