Jumping the shark? Nonsense!
A TV series that delves deeper into the characters' underlying psychology is most assuredly NOT jumping the shark. It is doing the OPPOSITE of jumping the shark.
A TV series jumps the shark when it stoops to gimmicky and superficial action sequences to compensate for a LACK of character development.
To accuse Nikita of jumping the shark because it delves DEEPER into the characters' underlying motivations is the exact opposite of the truth.
Worse, it is a confession that the viewer is too emotionally immature to appreciate psychological motivation, but only understands physical action.
No. Nikita is at least maintaining its original standards, if not getting better with age.