I should go back and re-watch it too, I bet it'd be even better knowing how it all plays out, because the first time watching I was very intrigued, but confused as to what was real and what was not real. I thought they did a great job disguising the fact that Slater was all in Elliot's head. To be honest I thought he was still alive and real up until the Whiterose episode when he kisses his sister Darlene. The next episode after that when he took a trip to his childhood town was crazy intense and at the end, I remember thinking Elliot is officially insane. Tough to say what happened to Tyrell, I'm sure that will be answered quickly in season 2. I hope he sticks around and wasn't killed by Elliot since he hasn't been seen in 3 days. Before Tyrell was on a mission to be the youngest executive in the company's history, but clearly that didn't work out. Now I think his end game is to destroy the currency of the world just like Elliot wants. That's a very good thought that maybe we're all seeing what happened through Elliot's eyes. So maybe the dialogue was exaggerated because that's what Elliot wanted to hear. I wouldn't doubt that was the case. As far as other characters returning, I'm pretty intrigued with Angela, Elliot's childhood friend. I think there's more to the story with her. I don't think she's as innocent as she claims to be.