The people from the order in general
The whole world in general
One of his fellow exorcists. (Kanda, Lavi, Bookman, Krory, Miranda, Marie...)
I think Lenalee is the heart, so I think there will definitely have to be a face-off between Lenalee and Allen. I hope he doesn't kill her (like Allen gets back his consciousness at the moment Crown Clown is about to pierce her neck or something dramatic like that... But yes, it's very, very hackneyed D.
Also, what Cross said was that Allen would have to kill "humans, whom you love". It's already been established that Allen loves both humans and Akuma (rather, he wants to save them). Neah will probably go on a rampage and kill many humans, but not necessarily people that Allen loves on a personal level. The word Cross used was "humans" as in mankind as a race, rather than "people" with whom Allen has a relationship. It was Allen (and many readers) who interpreted "humans" as "people". I think this will be a key factor in what will happen, or I think Hoshino-sensei wouldn't have put that conversation in.
*crawls from a hole after 2month orso*
I voted for the whole world in general but honestly I couldn't choose between that and someone else, I thought that maybe he had to "kill" the souls of the Akuma's. Allen loves the souls of the Akuma's and does everything to save them, but Neah may know the truth behind the Akuma creation (points at what the Earl said in Sheryl's garden) and "kills" them or Allen may found out the truth about them (if he's going to join the Noahs).
Eventually choose for the whole world in general because I have the feeling that Neah is the "real bad guy" (and decieved Mana and Cross) and that the Earl does the right thing in the wrong way..... Could also be an explanation about why Mana helped Allen out ( he found out about Neah's real intentions etc.)
I mean, he even creeped Road out in the Ark Arc xD
It could be possible that there is some power suppression b/c of 14th (like both are suppresing each other, that's why neither has yet to fully show) but really. It is in Allen's personality to be able to purify even Noah, but so far, that has epic failed.
For some time i kept thinking that No One will die by allen/14th, b/c when Cross said that, i think he might've pictured some typical scenario that did not involve all Noah waking up/Allen and Kanda being kidnapped. Hell, would cross even have known about Alma? If not, that would definitely not be part of his plans - therefore, his warning may now be void =/ (also, 14th woke up through Kanda's stab, i don't think Cross counted on the 'attacker' (aka Kanda) surviving)
btw, if chapter has been released, info in it is no longer a 'spoiler' right?!
Cross defintly knows about Alma, he was a scientist before he became a excorsist. And even if he weren't an scientist from the order, he already knows a loooot of what is going on arround the order xD
daaaamn I'm so curious for what will happen
i voted for someone else cuz there is probly no way that Lenalee is going to die(she's the mein female, the main females almost never die)
and Allen loves alot of things.
but i started thinking about the people Allen has met in the past like that police woman or that old lady with the guy somewere in the U.K.
and what about Allens friend from India(the one that became an akuma cuz his sister died) Allen had to kill him but he didn't like the idia at first.
But the noahs are definetaly gonna die, well at leest there memorys
(the noahs cant die there the best characters, and Tyki is a noah, TYKI!!!)but maby not only by Allens/14th/Neahs hands
but i really think he is gonna kill Road or Tyki(I hate myself for thinkin that)
Mana/The Earl. I think Cross knows about the connection between the two, which is why he said that Allen would have to kill somebody he cares about.
Of course it hasn't been confirmed if they're the same person, one person split into two beings, twins, or one of them had their appearance stolen ala Hohenheim/Father. But still.