My friend Paul B has a theory. He thinks Tyrell Wellick is dead. That the season is building to this revelation. But it won't be the end of Tyrell on the show.
Rather, Wellick will "live" on as one of Elliot's alternate identities. One opposed to Mr. Robot. The two will be the angel and devil on Elliot's shoulders.
I think Paul B might be right. And I have to say, I won't be disappointed if he is.