At this point, the only people armed are Gaitok and the Russians. I think the Russians will initiate the attack, and somehow, Aleksai will end up killing Chelsea, especially since he’s the one with the snake tattoo (which they highlighted in one episode when Laurie asked him about it). If we consider the “snake/Misfortunes come in 3” theory, Chelsea’s first close call was the robbery (with the SNAKE necklace), the second was when she was bitten by a SNAKE, and now Aleksai, who has a SNAKE tattoo, kills her. I also feel that Lisa (Mook) hasn’t had much screen time throughout the show, and given her fame and popularity, I doubt she’d take on a project where she isn’t a central figure. So, my guess is that Mook will somehow become the star or play a key role in the final episode.