Spoilers and attempt analysis below:
Jane said to Thomas Mcallaster that Partridge switched the DNA records of Mcallaster after the scene of the explosion.
Does this mean Partridge is alive?
Comment if I'm wrong.

Also, I don't know if you's have seen this but, in the very, very last screenshot/scene there is a man will black hack hair in a black suit.This made me very suspicious and it might be the real RedJohn. The guy fits the description of Rosalind and looks a lot like Michael Kirkland or Bob Kirkland.

Comment your thoughts^_^

PS: I'll be so pissed if the actual redjohn is Mcallaster