I have a feeling Zeke isn't dead yet.

I have to say, sometimes the quick way Levi deals with people and problems is kinda funny.
Zeke was all "THERE YOU ARE LEVI!! Now I'll have my reveng- "
(all of a sudden Levi slices his nape then blows it up withe grenades) .
Levi: " 'kay, problem solved, who's next?"

And now, here comes my morbid prediction: We've seen Levi pwn Zeke a second time, but something tells me, he won't be so lucky for the third time. I just have a bad feeling right before the final climax of the series and towards the final FINAL battle at the end, (which I feel might take place this time on Paradis Island) that Levi might go down because Zeke will have a trick up his sleeve. Levi might get killed during the final FINAL battle and his sacrifice from some hidden mystery might actually provide info for the survey corps (or Connie) to ultimately defeat Zeke. I'm stating this PURELY on guessing. This manga can go any direction, and what I said might not even occur. It just seems to me something that might happen in this kind of series. Kind of like the Deathly Hallows situation where Snape gives Harry his memories and the last key to destroying Voldemort at the expense of his death.