Can Tess be left alive since she knows Clark's true identity?

• Well, Clark can't kill her, so it would have to be an accident, but no, she can't stay alive.

• She can stay alive but she'll always be a thorn in Clark's side.

• Ollie might take her out as soon as Clark finally confronts Doomsday (as he should).

• One of Tess' plans already almost killed her; it's only a matter of time before she self-destructs.