Well, my take on these covers and its clues are that some of the 'clues' lead to obvious outcomes in the next 3 episodes, and some are 'unpredictable'

Eg: Nathan gets elected, hence the confetti with the American badges
- Parkman becomes a Badass pretty soon..based on the mind-reading stare he's giving Peter. Peter obviously get Meredith's powers, but the question is: does he get it from Meredith (whom we now know has left the cast), or does it get it from Sylar (Perhaps Sylar kills Meredith, hence creating more angst/ hatred of Sylar from Claire)
- HRG's true intentions of protecting Claire becomes evident to Claire, who somewhat grudgingly accepts that he means well. He now goes against the company, and dedicates his future to science, experimentation, and protecting good heroes!
- Niki and DL : Niki wins for now, and their search for a missing Micah draws the 2 of them closer.
- Linderman and Sylar: this one is possibly the best cover of the lot! Perhaps Hiro does get to Sylar, and does kill him..Linderman however has another agenda..he has already advocated the bombing of New York (0.07). He possibly knows of Sylar's future in the white house too, and somehow sees values in it. So, Hiro does get to Sylar, but Linderman comes along and heals Sylar.....